Here's my list to combat roneers:
1.
Galactus: Having another giant to battle would be amazing. I picture battling a few heralds to get to the Galctus-boss stage where he is sitting in his chair shooting beams from his eyes and creating force fields around you and throwing you. I also see him trying to smash you with his palms (getting up from his chair) like the bug you are. Since he can manipulate his size a playable Galactus isn't too far-fetched. Make him the size of Sasquatch and give him an Eye Blast, Team Everything Boost, Growth Stomp, and Palm Smash for his PUs/HU.
2.
Apocalypse: My favorite Marvel villain. I think everyone wants an Apocalypse mission, especially if you have to fight his Four Horsemen beforehand. A playable En Sabah Nur should have something along the following for his PUs/HU: Turn his arms into whips, Self Heal/damage/armor boost, turn his arms into guns, largest energy explosion in the game.
3.
Black Bolt: This cosmic hero is the leader of the Inhumans. I've been wanting a pure sonic hero since day one. He has a super-punch called his "Master Blow" which would make a great P3. Black Bolt can create a nigh impenetrable force field around himself, an excellent P2. Throw in a whisper P1 and a scream HU and you'd have a great set. Gaz could make it fun by having a damaging yodel. Bring on the Inhumans!
4.
Howard the Duck: An anthropomorphic cosmic hero would sell VERY well for Gaz. A Quack-Fu combo, an egg-bazooka, an 'Odd-Job'-like hat throw, a tie whip, and a "Duck-Duck-Duck-Goose" jumping attack could make a very fun character. And if we get a Doctor Bong mission with a HeckCow sub-boss, I'd be thrilled!
5.
Vance Astro: AKA Major Victory, Vance is the first of three GotG members on this list. BUT, he is the only one from the original 1969 Team (Earth-691, a future dimension). His inclusion could pave way for Yondu, Starhawk, Charlie-27 and Martinex. I also included his early 90's look (American trench coat), his black-Cap uni and his Marvel Boy look, BUT he is also Vance Astrovik which was another version of Marvel Boy and is currently Justice. He should have various "psyche-attack" blasts (one from his forehead and one from his hands) and shield throws for his HU and PUs. Especially one where he psychokinetically controls the shield's path.
6.
Red King: Most would consider this a very high spot for such a minimal character. Angmo-Asan was in SHS and the great DVD "Planet Hulk"- which means he could be the mission boss in a Planet Hulk Theme where we get Skaar, Korg, Miek, Elloe Kaifi, Hiroim and Hiro-Kala (or at least four of them). His playable character should also be in the gold armor suit with his giant sword, his HU should be a Sakaar spikes 'death-from-above' attack. He should have an 'obedience-disk' PU where the baddies attack each other, too.
7.
Phyla-Vell: AKA Captain Marvel AKA Quasar AKA Martyr. Phyla is the daughter of Captain Marvel (Mar-Vell) and an off/on GotG member. Whether we get her with the Quantum bands or Quantum sword, she still has enhanced-Kree powers. I think a P2 Team force-field armor boost would be needed, but the remainder of her PUs and Hu should be Quantum sword attacks.
8.
Carnage: The main reason I want Cletus is to shut up all the fools who say he won't come because he is too violent. It's a moronic rumor. Other than that, having the most powerful symbiote would be fantastic. I think his boss attacks, and HU & PUs, should be based on Carnage's ability to shoot out symbiote material in the form of bladed weapons, change his arms into swords, and increase his bite dimension.
9.
Adam Warlock: AKA Him, Adam was based on Jesus Christ Superstar and his outfit is a nod to DC's Captain Marvel. The thir GotG member on this list, he possesses the Soul Gem that produces "Quantum magic", can manipulate energy, create force fields (a nice Team-armor P2) and teleport. I'd love to use him/HIM against Man-beast in a mission. I would also like to see a cocoon PU with extreme health regen and a staff PU or HU.
10.
Hulkling: Another one of Captain Marvel's children, Dorrek VIII is also half Skrull. If his homosexuality doesn't keep him from SHSO, I'd like his PUS & HU to include: a claw-growing claw attack, an armor-growing armor attack, a wing-growing winged attack and a 'Hulkling Smash!' move. He also needs passive health regen.
I enjoyed your list, roneers!