Given that it's been almost five years now with the SWLCG (their oldest and longest going SW game) and not a lot of variation from the OT in that game, I think the PT is out in general. Whether that's a Disney decision or what, I have no idea, but I would definitely like to see PT material in a more substantial role in FFG games at some point.
As for getting into IA, I think now is a great time and the game feels like the slowed down only because FFG is going through growing pains with so many games at the moment. IA still has plenty of relevant OT/ST material to go through and at least another year or two before a second edition option.