What I find interesting is that Luke’s outfit in TFA is almost exactly his outfit in ROTJ, just colored differently.
There’s always debate as to whether the robes and tunic are actually a part of the Jedi uniform (as the PT suggests) or rather the garb of Tatooine dwellers and hermits. Luke being a hermit in TFA doesn’t help either way. Perhaps Rey’s eventual Jedi costuming will prove one way or another (though it is probably likely that she’ll keep the outfit from the end of TFA throughout VIII).
Whoof, I just realized I hope we don’t see any PT Jedi robes in the ST.