The counter-attack, shield, command-station-protecting, and stealth posts are still there. I may be forgetting some other normal guard posts. The ones that were buffed/reworked were the passive, short-ranged, mlrs, missile, and arachnid (anti-starship). They were already just-the-combat-value, but now they actually have combat value.
Doing more normal guard post varieties (more utility players than combat ones) would be great for the next expansion. Maybe ones for grav, tachyon, munitions boosting, etc.