Marte had a really hot start to the season, but since has cooled down a lot and is hitting just .261. He is showing good power, but needs to work on his plate discipline. I think him being promoted will depend on what the corner OF's for the Braves are doing, but he doesn't seem real close yet.
Meyer has had a pretty tough time in AAA so far. He pitched well recently but still gave up to many walks/hits, I'd say he has a way to go still before being promoted.
Foppert's control has been off lately, walking way to many guys. Even though he has he has worked out of a lot of trouble, but he doesn't seem close either.