SFGRTB
Superstitious Fan
It will change quite a bit, I'm sure. This does not factor in the inevitable minor league free agents the org likes to use to fill the AA and AAA rosters. There will be injuries, trades and a few of the guys you've mentioned will be minor league free agents as well. According to my calculations Shawon Dunston, Jr, Carlos Garcia and Cristian Paulino will be eligible for minor league free agency. Both Garcia and Paulino have been playing infield as well as outfield for Augusta (actually, I'm not sure Garcia has played much outfield since moving down from Richmond).
And possible trades, if the Giants sell some pieces off (though I hope they would be getting talent closer to MLB than low-A ball).
And a few Dominican players might move up (Franklin Labour perhaps, or Alexander Canario though that would be a massive leap for a 17 year old so odds are really low).