Juuuust because I like debate... I may suck at it, but...
Firstly, yes. We get it. Some of us are surprised Blossom is the mother. Me? I'm sort of disappointed if anything. Along with an ex-team member pointing out that some people seriously wanted Blossom as a mother, the evidence there was clear enough...
Obviously, the pink beam was one of them. I wanted to nit pick about how blossoms laser eyes weren't pink but red, like Superman's. Then I figured, for the sake of me not twitching with some more obvious details, that she must've flown by and chopped the thing in half. It's Blossom. She's perfectly capable.
Then of course you have the blacked out figure and the white trench coat. Other things that should've clued us in, despite the lack of giant ass bow. She's fighting for her life here. More than likely, the bow wouldn't survive.
And as far as Grim saying the hero's were dead, his actual words were more along the lines of, "One by one, they were defeated." And keeping in mind this is a flash back, this means that there are still a few heroes yet to be taken down. More than likely, the super powered ones like the ones we've already seen.
Gonna stop there now, as you'll likely have gotten the point.
Now, as far as who Mimi's father is, we'd have to take a look at her. She's got straight, black hair, red eyes and a very humanoid form. She seems to like dressing up, or is at least provided with nice cloths, and wears boots, dresses and a few bows on her person including the large one on her head. She also apparently can't walk... Hmmm...
Now, we established Blossom is the mother. That would explain her straight hair, her liking bows, the red eyes and maybe even her picking up on her mother's fighting spirit. I say the red eyes could be explained by Blossom's genetics as, even if she bedded someone with darker eyes it's a good possibility the kid's eyes would still pick up the red hue in one form or another.
Now... who has black hair? Or black hair within their family? HIM does, that's for sure. Mandark is another possibility. There could be others but I can't immediately remember.
Not Dexter. Neither Blossom nor Dexter have the genetics needed for their kid to be black haired. Dexter is a red head, which he picked up from his mother and his father is blonde. As far as I could tell, you kid probably won't have black hair due to her grandparents. And Blossom? She's a chemically created little girl who came out a red head. Even if Dexter did have the genes for their daughter having black hair, Blossom's genetics might be more dominant and make the kid a red head anyway. Blossom's relation to Bubbles and Buttercup likely won't have played a role in her child's hair color as... again... they were all artificially created.
Real quick, touching on species. As far as HIM not being able to get Blossom pregnant because of different species... You've got to keep in mind that Blossom isn't necessarily human herself. We just assume her body functions like one to keep things from getting more complicated. For all we know she might not be able to have kids with a human mate, and there could be several reasons for that! (Must resist making joke about super strength during orgasm.) It would take something super natural to safely and surely get her pregnant .... and who else but the devil himself to do it? He doesn't even really need to have sex with her as far as we know! Him could reproduce entirely differently! He could kiss Blossom and get her pregnant! Hell, he could do a silly little dance in front of a thousand people, sing "Sweet Child O' Mine" on stage then break out into a guitar solo just to get Blossom pregnant!
Point is, HIM being the father isn't too far fetched. Hell, if anything that would probably explain her inability to use her legs. HIM and Blossom not being exactly compatible to begin with (in every sense), it could give Mimi some physical difficulties due to the odd biological makeup she'd have.
HIM would also further explain the black hair and red eyes. He's got both and having a daughter physically related to him would probably make it easier to turn her into one of his own kind. Sure, he could probably do that with a normal human child but I doubt there'd be the same perks or sense of satisfaction from it.
Other, more human possibilities are there, of course. It's just unlikely. Why would HIM try to safely capture someone else's kid when he could easily just snap their neck, laugh and run off to prepare for Blossom's wrath later?
As far as the traitor goes, we have visible proof that it could be Dexter or Mandy. Me? I think they both had a hand in being traitors in one way or another. Mandy being Mandy, she'd probably act as a catalyst for the defeat of the heroes. She's always been concerned with her being in command, on top and always winning. What better way to do that than to get rid of the competition? Once their dead, Mandy can just use Grim to rule the underworld, use her own smarts to become a political superpower in the mortal world... and then she'll have everything she'll need to take down the overworld/heaven/whatever else there could be.
Dexter? He's always been the heroic type, but he's also super smart. Like someone said before, I doubt he'd willingly become evil. In my mind, he asks for the power of an evil entity then turns around and tries to do good with it while he can. He may be a boy genius but that only gets you so far in some situations. We've seen he's not always 100% successful, he's probably got a separate computer available to document his wrong doings so he can try to learn from them later! XD Seriously, though, he'd likely figure out he'd need some help. Since creating his own superpowers didn't work before and DeeDee's seemed to have worn off he'd go for something he knew would work.
I figure Mandy would give Dexter that extra little push he needed to go through with it and sit back and watched as everything fell apart from there.
... Wow, that's alot of text. But ain't nothin' I'm sayin' law, folks. I'm just gathering what I know and trying to make it fit. I've been wrong plenty of times before, but I've also had my share of being right.
Oh, and congrats. If you read this all, you ... well... you read it all.
Only the wise know how foolish they are... (I have a fairly good idea)
I like manga and mochi, I'm crazy 'bout those things
Mini Models and orbs in glass bottles
Anime, gaming and RolePlaying flings
Those are a few of my fa-vo-rite things <3