I seem to be a little late to party but here's my feedback from few hours of playing.
Combat mode:
1. New variant - it's much better than it was - WSAD steering allows for some insane dodging - direct fire is much more fun.
2. Abilities - thats a bit more un-fun part.
From the ones I tested
- shockwave seemed to do nothing
- added squadrons are of low to medicore use due to varied firing speed with your minigun so you hit with their shots or it - choice is easy (minigun all the way)
- meteors main weapon - why use it? hard to hit enemy rockets even and dps is very low compared to minigun
- cloaking - not tested not my style really
3. Drawn out combat - noticed that esp on defensive help missions - you might need a lot of time to find enemies there
4. Movement speed variety/jittering - jitter is noticeable depending on direction - was quite easily visible around 45 degrees (compass direction). Ship speed varies heavily with direction - it looks strange not sure if it's a gravity well emulation or something else
Jitter might be tied somehow to ship speed variations.
Main map - haven't spent much time there mainly due to attempts at getting some influence with defend missions that are long.
Already noted by you - it's not much to do there. Due to negative influences at start only way to gain influence seems to be space tech trading or defensive help missions (I didn't want to do 1st one).
And also things that you actually do don't seem to have that much effect. I did demolish few armadas for example and... nothing really changed. I was sitting on planet attempting to defend it and there was no defense aid mission while planed was invaded and captured by other race.
I tried to play around with planetary stuff after getting the influence. Reducing riots gave tendency but actual effect is hard to observe. Colonize moon costed a lot of BP but effect was.. hmm no idea what. It was still available in menu next time I checked.
Some heavy imbalance on planets/pops but I guess thats intended? (Evoks having almost no pop for quite long time for example).