Alot of ship sets with the numerous portrusions and holes and such would require major reworking I am sure. But there are many ship sets that for the most part are solid
As far as I can tell most of the stock races that I wanted to see a return of are in. I really hope that the EEE don't change to much, I like their current incarnation very much.
United Flora has always been one of my favorites. Thats the only one not mentioned I can think of without looking at them. Don't know how hard that one would be to do though.