Can we abandon a project mid design to start another, if we're in design hell? And do we know the consequences if we make a shit design that isn't worth producing? Given we-the-players know we'll license out our new corvette to allies, Arda still will be able to build corvettes, but will our Lord Janitress Lora Isarch get administrative consequences and the like?
Trying to think about it from the Ekkaian perspective, a corvette design right now is only worth it if a) Cimtar won't license theirs or b) if it does something the Soon-To-Be-Gloriously-Named Cimtarn one doesn't. A la versatile gun fighter that can shoot down fighters better or an escort carrier better than our converted design, something else that I can't think of?
Basically if we can abandon a trash frigate upgrade design mid go, or don't suffer much in game from our first try being a bust, might change my vote to Frigate if that's our eventual first real goal.