Sorry but no. There are literally no similar RTS space games out there to this day that even come close to Homeworld imo. You don't just go messing around with a classic like that.
What I do hope to see is a port of the best mods out there for Homeworld. Like the Star Wars mod, which is probably the best strategic SW space game ever as well (althrough it really isn't even official).
The OP would also get his wish of smaller fighters then. As capital ships were truly huge in that mod.
