It appears they have considered addressing how the TIEs land and rest in planetary gravity. The full site has some fantastic artwork. I’ll put the link in that thread as well.
I don’t like it. This would require extra motors to fold them, which means extra unnecessary load. It would also make the structure less stable. If (for some strange reason) having an ability to land a fighter in a middle of nowhere was important, it would be better to just use that extra load to make the wings/pannels strong enough to be able to land on them. Less complexity, same effect.