Could see some significant changes, with a number of guys coming back from rehab and whatnot.
My mildly-informed-but-mostly wild-ass guesses:
MarGon replaces Bixler (or Carpenter if they go down to a 7-man pen)
Maxwell replaces Downs
Wallace replaces Dominguez, and plays every day at 1B
Wilton replaces Del Rosario
CJ back to 3B, until they can trade him for someone else's flawed player
Schafer/Maxwell platoon religiously
The Scott Moore Experiment continues, mostly in RF, with Bogey sitting or displacing Schafer
Keuchel stays in OKC until Wandy is traded
Happ, somehow, stays in the rotation