There are still a few roster spots remaining. An official decision between Jeanmar Gomez and Kevin Slowey has to be made for the final starting rotation spot. There is still one bullpen spot open, with Jeremy Accardo, Jairo Ascencio and Frank Herrmann in competition. Either Aaron Cunningham or Ryan Spilborghs will be the fourth outfielder/backup centerfielder (unless a trade occurs). The final roster spot appears to be leaning towards Jose Lopez, though that has not been officially decided yet.
More details in the PD write-up.