Probably 2 of the top 6, maybe 3. Rosario, Mederos, and Morales are all top-2 round picks. Sammy Infante isn't far behind them either, though I believe he'll be eligible again as a Soph so going to school and coming out in a normal draft year might be a pretty good decision for him. Carlos Rodriguez is the other one we could potentially lose, though probably not if the draft is just 5 rounds.
From what I can tell the best recruits who are very likely to make it here are Carlos Perez, Chad Born, CJ Kayfus, Jamar Fairweather, Giuseppe Ferraro, and Jose Izarra. We also have two pretty good Juco recruits in Adam Frank and Michael Rosario who we won't lose to the draft, but who knows what will happen there if there's a crunch for roster spots.