He actually came back in the early 70's as Ant-Man but it seems no one remembers this run
But to answer your question, I wouldn't mind seeing Hank come back to something close to what he was in the late 80's... Dr Pym scientist/adventurer. There's a lot you could do with that type of character although I'm not sure a solo would sell in today's comic market. A TV show or movie could do well though...