I mostly want to see Homeworld 3 because theres no other game in town. Honestly, early disruption is a key part of any RTS.
Frigs are useless unless they are massed and hit before the most heavy stuff arrives, and a frig rush is hard, except maybe a vagyr one. Recalling wings only works if you are winning, otherwise it just speeds your demise. I don't mind either of these things. It's still very satisfying to blow the other guy's shipyard before he can get anything out of his massive investment. If anything the super heavy ship classes come too soon in HW2.
Is it as good as Homeworld, no way, but like I said theres no other game in town.