About 3 or 4 months ago leer made a media release on the clan xerxes. He gave some rather in depth info on it and I thought he said was ready or nearly there. Also speaking of aircraft, they are significantly slower and actually loose a considerable Mount of forward airspeed when making hard maneuvers. With the inclusion of better anti air, it kinda drains the fun out of flying. I really appreciate the new sulla variants though.
Shivas seem pretty much useless now, so B variant will probably be most used (unfortunately), if/when it is used at all. On TC, ASF are kind of a net-net negative for team, although you can get some kills while watching your control points melt away. A lot of people haven't figured out how to land. VTOL taking CP is cool. But overall air is a poor sideshow on TC (imo). Probably just as well a new ASF was not introduced.
On the plus side, vehicles are very good so far. Tank driving is fun. Osiris-C is killer (it actually might be my favorite so far). Love the lower costs on WH! There are some mech variants I haven't a clue how to use appropriately yet.
I can't really tell much improvement on hit detection. PPC & ACs still seem lossy sometimes.
Maps so far seem well done, although I'm not crazy about DV because of distances, always seems you are traveling, traveling, traveling - and team gets unavoidably spread out.
Those are my quick, and probably uneducated, first impressions.