Base-foundations are mostly likely to come back but my suggestion is to give us more options when placing/building them.
Give us the option to “snap” multiple variations of foundations to the ground. As an example:
On top of the old way with support legs,players could choose a solid block of metal as well as a foundation(new way) so it looks more robust. Or more variations or even the ability to shape them like rooms, to make bases look more unique and personal.
Advantage imo for the new way is that bigger bases would look so much nicer (instead of looking floaty + top heavy with legs) with a mixture of both leg/pillar foundations (to reach hangars more easily) and solid ones.

Also, kindly allow us to center them on things like hatches, pretty please.