I think the biggest thing for next season is you just really, REALLY hope that the young pitching takes a step up. They are banking hard on 5 out of Miller, Teheran, Wisler, Folty, Banuelos, Fried, Sims, and Jenkins forming a strong rotation in 2017. Wisler, Folty and Banuelos all looked good in various games this year, but obviously none of them hit the ground running like Syndergaard, McCullers, or Matz, and none is a sure thing. That's not unusual, but if those guys don't develop the way we all hope, then this rebuild is in trouble.
Otherwise, of course you'd hope Olivera shows why the Braves in that deal gave up Alex Wood and every single remaining chip at the trade deadline. Mallex Smith continuing to play well would also be nice, since the Braves OF situation for the foreseeable future is so shitastic.
Oh, and spend a fuckton of money internationally signing that guy who is supposed to be Miguel Cabrera 2.0.