HotRod said:

No one saw a lighsaber in ESB apart from Luke & Vader

Nah, you mean to tell me with something as perfect for cutting through stuff, let alone snow and ice, Luke didn't once use his lightsaber to help carve out the insides for Echo Base?? :D

But seriously, those were excellent and very interesting finds:

Somebody making good use of fallen Imperial remnants; people being in awe of a gleaming sword of light (in contrast to the Cantina in IV, where the aliens there were just "meh.."); the alien who helps Daisy's character (possibly one of Serkis' characters?); a new and updated droid (gives R2 some competition and a chance to prove he "still has it"); Sydow's character who can relate to the past (with the injuries he sustained, a former Imperial officer who is now neutral would be interesting).

I can definitely see all of those happening. I really hope so.