As I've said, I would not be surprised if he stays if he was not offered one of those addidas spots for underclassmen in MLS. He is really good but could still improve a lot in certain areas (lateral movement, defense). Plus I think he may be much better as a winger vs striker due to size etc or at least split time between striker and winger with Pascal.
The MLS is not going to tell kids they think they should come if they are not ready. That being said I guess we'll know for sure after the draft because, as with any player, it only takes one team that will invest in your development.