I just spent ages writing a reply to you Sam but the thread closed
It depends on the route they go with. If this is a passion project of Pym's aimed at "changing the world" then they can introduce him as an old friend of Stark's (or of Howard if they keep him being in his sixties). However if it's something the WSC cooked up, or something that Hank brought to them, Tony most likely wouldn't get involved.
It's just a matter of wait and see now