I don't think Albies has to go on. This is only his fourth year. I think Sanchez is in the same boat. I will admit I'm not sure on how international signings are handled. Gohara, Du. Peterson, Pike, and Demeritte all have to go on or be made available in the Rule 5. Braves will likely have a few open spots due to departing FAs (Phillips, Suzuki, Motte) and a few guys that they will probably flat-out drop from the 40-man (L. Adams, J. Peterson, M. Johnson, Hursh, Burgos, perhaps Garcia and/or Cabrera). Of course, Winkler, Rivero, and Lindgren have to come back on the 40-man as well, so there will be some shuffling. It would be nice to unload a couple of guys at the deadline to free up off-season space.
Looking at the list, R-P Didder should also be on it unless it is limited to first-timers.