I found this IGN video from the Star Wars Celebration where they showed off some of the costumes and props from TFA. Most of it we've already seen before only in close-up, such as Kylo Ren's mask and lightsaber as well as some details on the new Snow-troopers and even a new Flame-trooper design. The most interesting part however is a piece of concept art showing Finn with Luke's lightsaber attached to his jacket. I guess this could suggest that it is Finn that finds the lightsaber and not Rey as we've all assumed so far, or it could even suggest that's he's going to actually use it as a jedi/apprentice.

https://www.youtube.com/watch?v=u9jBp4h8WfI