"Hey, it's a big universe. And chances are this isn't your universe anyway, so there could actually be a Hoth here."

At least it's possible as far as Tony's concerned. He looks back over his shoulder when Rocket references Steve, not for any real belief that he'd see him so much as the reference was made so he looked.

"Well, there's already been a lot less death this time around, besides, the guy can be weirdly persuasive." He shrugs. "If you don't want a hand, then. Well. Have fun and don't trust anything that looks normal." He sounds bored at his own advice as he turns to prepare his exit from the ice.