Perhaps, but seeing as he already plays in the Spanish 2nd tier for Barcelona B, not sure they would see the point in him coming here. At least Deulofeu is playing at a higher level with Everton.
Unlikely I'd say. Not that Barca wouldn't want to help Oscar out, but I just can't see why they would want to loan a player they may see as a future star to an English 2nd tier team.