Need Advice on My Lvl 60 Phoenix Squad and Space/General Progression

First off, congrats on Thrawn. It's a big achievement.

I'm in a similar boat - the "what next?" for Phoenix. I don't need them for Thrawn, they're more than strong enough to get 7* EP when he comes back, and they don't struggle in GW at all. They are becoming less and less viable in squad arena, and even their ships aren't really fitting in my fleet anymore.

I've gone to a Thrawn/EP/Vader/TFP/Tarkin team. It's still about 12k GP behind phoenix, but as I focus on them the gap will close.