Well...first off, let us not assume they'll be ruined. There's a few old A-teamers that could only be helped by panel time, even if its not the most ideal of situations.
Swordsman...eh. I'd rather see Phil Jarvert & Maggie come back from whatever reality Kurt sent them to, myself. Magdelene would work, being a formerly crazy ex-gatherer.
I dunno about Hellcat being a candidate. I've not read much on her since her resurrection, but she always seemed to cling to the Avengerhood pretty strongly. Wasn't the conflict between her trying to be the noble hero while Daimon was the nutty spawn of satan what ultimately drove her nuts and led to her death to begin with?
Dane? Really? Nah. Maybe the Harras version, but not the one we've seen in M-13.
Jack of Hearts...that I could see. Sort of a "Why didn't you try to save me?!" kick. But that'd make him really evil, and if the tow-line right now is that the Revengers aren't really a VILLAIN team, it doesn't work.
I disagree about Angelica, though. Firestar retired rather than play hero after she saw what happened in Stanford. If ANYONE beyond simon could make a case for banning or working against organized hero teams, I think she could.
As much as I'd love to see Gilgamesh again...explain to me the logic. (Granted, this is the Eternal they killed, so logic is odd when it comes to Gigglemess, but still...I don't see it.)
Madame Web? I thought Julia was doing the Arachne thing?
Truthfully, the one that sprang to mind first was the Sandman. If there was money in it, I'd imagine he'd be all for it.
Jim Hammond and Gilgamesh and a few that you mentioned are also still dead. Not that that means that they can't come back of course (Although I hope that they don't resurrect Gilgamesh.). But I think that you overlooked a few former members:
#Sersi- She's DEFINETELY a top tier Avenger
#Rage- He's also pretty strong too.
#Dr Druid- Dead
#Quicksilver- I can see this.