Lol you should have put an actual poll in the OP, Justin! ;)
I think we will see #5, a new hilt. Personally though I would love to see the V2 make a comeback, as its weathered look already lends itself to being able to withstand the test of time. I think there will be plenty of room for new hilts, and I am hoping to see at least one classic hilt make a return, and the V2 is my favorite at that.
Wouldn't it be pretty insane if they used one of the actual ROTJ saber props in EIV?! Certainly not practical, but definitely vintage and cool.