Reading over some of the old speculations, I find myself hoping for the ones that haven't yet been contradicted. The following ideas have no real basis in SOTM as we know it, but I think they're cool ideas:
* An Oracle-type hacker/info specialist who supports the heroes without being a target. (This would require special rules printed on the card which aren't a Power, and that would be unprecedented, but I wouldn't be surprised if that happens with The Sentinels anyway.
* Possibly the same concept, but a hero deck for a character who's just a powerless, uncostumed detective who teams up with the heroes to solve some of their less "Thokk!"-tastic adventures. Nightmist sort of covers the detective angle, and Expatriette the powerless normal (or so we assume…) but I think it could still be done.
* Decks for CON and FILTER (these are both quite a stretch to me, but I'd be fine with finding out I'm wrong there!)
* A deck for the Fu Manchu wannabe who turns into a dragon and has ninjas.
* A Venom/Parasite type villain, possibly technological and infectious - the Hollow Points / Shock rounds guy/s?
* Also for the cosmic expansion, I'm guessing the guy Chrono-Ranger fights on a lot of his cards is an alien. (Interestingly, I once dreamed that his name was "Yaz". Having no record of prophetic visions, I will assume this part isn't likely.) He was probably just some tough guy back in CR's day, but maybe in the modern age he becomes a big deal somehow.
* And of course, I'm eventually expecting an "evil planet-destroying corporation" villain to be The Naturalist's nemesis…perhaps it shows up in the cosmic expansion, because it's secretly backed by aliens that want to see the Earth depopulated, destroyed, or terraformed for their carbon-monoxide breathing selves? We can also anticipate that KNYFE will get her own Nemesis, possibly being the FILTER deck.
Meanwhile, we're fairly sure these decks are coming:
* The fifth Prime Warden - I imagine him as having the powers of Firestorm but the narrative role of the Silver Surfer, and appearing in the cosmic expansion.
* Giant Thorathian Girl - Again, probably in the cosmic expansion. (If that turns out to be #5 rather than #6, these two would be it for new heroes, which would be kinda sad, leaving us nothing more to speculate on.)
* Giant Earth-groping space villain. (Perhaps he has ALL the nemesis icons?)
I also find myself hoping that Setback will have 24 HP because of the jinxes-on-proper-targets thing. And maybe his innate Power will be "Activate two other Powers"?
Young Legacy doesn't really need a new deck, but Greatest Legacy could certainly use one, since canonically he's not supposed to be invulnerable…this ought to rule out not only Fortitude but possibly Heroic Interception and Lead From The Front, since he'd be just as squishy as the people he's protecting (no Captain America shield, and while he certainly shouldn't be a coward, neither should he recklessly endanger himself and risk depriving America of its living symbol, or delivering The Enemy a propaganda victory). An entirely distinct deck for a character with such a fundamental difference from our version of Legacy seems reasonable.
About Unity being Magneto-prisoned…on La Capitan's Walk the Plank, we see Unity as the victim. I'm imagining that perhaps Cappy shot her and she fell off the plank into the Sea of Time, but that she survived the trip and wound up lost somewhere, until she was picked up by FILTER and imprisoned in the Block, later to be rescued by Our Heroes. (Also, with the parallel to CON, has it ever been really explained where Devra came up with Unity for her codename? I remember that name being one of the first things that grabbed my curiosity when I saw the SOTM box, and it still remains unclear to me exactly why she calls herself that…it sort of vaguely fits with her powers, but it seems like it should go deeper than that.)
Also I never caught before that Mr. Fixer's youthful version had "Black" in his hero codename, for "obvious reasons". (See also Black Panther, Black Lightning, Black Vulcan…and, conversely, Spinnerette's Tiger, who is thoroughly sick of people calling him Black Tiger.)
Agreed. They're a pretty weak correspondence…they have virtually opposite personalities, but that's not much reason to declare mortal enmity. It kinda smacks of forcedness, much like the line in Fright Train's bio where it says he and Vance "knew they'd never be friends" upon first meeting.