IF King Obama ever leaves, Junior will be one of the names on the pardon list.
Pardon is only granted after the time has been served for a federal sentence. Obama could not grant him a pardon, because whether he serves time or not, the time served with the sentence must be expired before a pardon can be granted. Obama will not be in after the 5 years. ( I could be wrong about the pardon time served, but generally that is how it has been done.)