I didn't get a chance to play in this most recent session, but based on the last one, I have a few observations:
Altogether a fantastic update. Gameplay feels even closer to SG.
Arbs have gone from one of the worst to one of the best units in the game. I imagine improved AI will nullify this, eventually. (In the meantime, my fourth note may suffice)
Pigs haven't received the same buff, despite similar roles with Arbs. This is largely due to increased player capacity per team naturally making pigs less useful (greater chance of enemy AA and greater amount of targets requiring larger fuel capacity)
Distance between ports and pocs feels a bit too short now. I'd push them back some.
Giving AI some ability to deal with cloak, even if it's just a 5% chance to bring a Manta in with the squad, should be priority for balance