I think nobody realy want and need new capital ship of any kind...
Here is my small list of ships which we realy need. If you have time you can try those:)
New model for Hessian/pirate cruiser .... grrrr another ugly starwars model still in game (haleluya bhg dildo cruiser is replaced in 4.85)
Civilian gunship (not gunboat because gunboat is pure war machine and civs. shouldnt have war machines) which fit into eagle line of civ. vessels... because there isnt civ. gunship
some new ships for trading - equivalent to adv.train... there is only container transport.. now it looks like evolution chain... humpback -> transport -> train -> adv. train because everybody want biggest cargo hold.
Dragons need new model of gunboat because their mdel is ugliest thing in game
Pirate transport and train need new models because they are second ugliest things in game... almost same cargo hold as adv. train but half of size? where is logic? And it looks more like boats which was used in Normady than space ships.
Huntres need new model.... jesus christ if Batman ever come to play here, he will choose this ship