Can we get something like this? Biplanes, helicopters. What about huge flying monsters that appear at a certain height? Wouldn't that be cool if we could catch them using capture pods and then turn them into ridable flying mounts? They don't even have to be fast, their usual speed will do. Also, why rocket boots were removed? That made me sad.
Biplanes would clash a bit. It would be more fitting to use more modern-looking aircraft, preferabily with uncommon designs, such as flying wings, 3-surface designs, etc... so they fit with the general sci-fi thematic (Unless we're talking about Novakid aircraft, in which case supersonic jet biplanes that wouldn't be aesthetically out of place in WWI would be more fitting).
Frackin universe has a Reaver which is a modern style of plane which is quite nice and even posses a gun, if you do not want to waist almost 300 tungsten on crafting a plane, the UT-47 Kodiak Shuttle mod has a modern, thin, flying, armed vehicle for starbound.