The trilogies don't usually disappoint, at least in this aspect. The empire, or Ren in this case, will get a victory.
Yeah, the non-heroes will get a win because they have to set up the big ending.
Personally, I'd like to see Kylo Ren die in this one. I don't like the character. I'd like to see Snoke get the win, or Hux (especially if he sets up or otherwise is directly responsible for Ren's death).
If Ren kills Luke just to set up Rey accepting her mantle as the last Jedi it might make me walk out of the theater. (I'm lying, I won't walk out, but I'll be pretty disgusted.)