Alright, bear with me here, because this is nuts.
So you take classic but dead Irrational Games franchise "Freedom Force", a slow-paced top-down tactical arpg featuring original golden-agee and silver-age style superheroes and an fantastic character creator the likes of which probably inspired the likes of City of Heroes and Champions Online
So you take that game
And you make it a co-op, mission-based, arpg brawler with moment-to-moment gameplay in the vein of Infamous.
Otherwise you keep the general cast and story, and the character creation system (with some updates for designing characters visually instead of having to import custom models and skins). You also keep the vertical, highly interactive and destructible environments set in tight sections of the city, no open world.
And absolutely don't update the aesthetics from the obsessively old-school 50s-60s style.
Why? Because I love classic superheroes, love character creators, love co-op games, like more direct gameplay, and generally dislike open worlds. I also loved Freedom Force and its story/cast, realize it will never come back in its classic form, and want more people to experience the campy fun of the franchise.