I'm sort of in the same boat as AZEL. I really don't design Cannon or Ship Schematic ships much, mostly because their are soooo many other well designed Star Trek ships anyways that I couldn't do any better. Also, I use Milkshape and it has limitations compared too 3Dmax so trying too copy design schematics perfectly is pretty difficult.
I like too make my own designs up. As for my plans, I'm going too continue making all the SFB ships I can for all races. This will include Early Years ships and X-era ships aswell (maybe even hypothetical X2 and X3 era ships for each race aswell). After that, I'm considering doing ships of other races in the SFB universe, but not sure yet.
If nothing else, I can always improve on the textures of the models I have already made.