Dropships and UFOs are the most work-intensive pieces of content in the whole game, because they must be added and tested in dozens of maps. We won't be adding another just for a minor adjustment.
Thank you, fast as ever
But isn't it rather because it is very minor, that it could be added ? I mean here there is no problem due to the shape for the maps. It would be very different with a new dropship. But it is possible that you mean that there could be memory or any hardware limit reached by those additions, even small (some texture and standard meshes), for the biggest maps?
I havn't read the wiki for the ships, what exactly are the new ships required ? Or I will jump to the according page if you prefere. Other detail. I'm making my own version of Firebird by now, not in order to add it as a new ship but as a possible replacement for fun. The propeller addon came just by a sort of chance as I've explained above. I was myself surprised that a so complex and complete ship could be upgraded correctly lets say, with only 2 standard shapes (just 2 cylinders in fact).
For anyone who wonder, here in attachment the look at which I'm working. It is far to be finished of course. Could also be an interceptor...