If you violate your probation before you are released (and I have to assume that leaving the state would be a violation), you PO would be duty bound to issue a warrant for your arrest. And, no, if your early release comes through after the warrant has already been issued, the warrant isn't just going to go away. The violation occurred while you were still on probation. Even if you violated probation just days before the end of your probation (even without early release), it is still a violation and subject to the full wrath of the court.
I know you say that you have already decided to leave whether the early release comes through or not. But, have you really thought that all the way through? Have you truly considered the consequences of violating your probation? It means that all the time and effort you have put into meeting the conditions of probation up till now will all be wasted effort. If you already have a suspended sentence, then it could be unsuspended and you would be subject to the full jail time and/or fines that the judge suspended. If, perchance, no sentence was stipulated and then suspended pending your successful completion of probation, you would go back in front of the judge for imposition of sentence...after now pissing the judge off by pissing away the break you were given. To top it off, at the completion of your sentence, you will likely be put back on probation again! At the very least, you can expect to void any early release that a judge may have signed and have your original probation period extended.
My advice would be to crash at a friend or relative's pad and adhere to the conditions of your probation until you have official release documents in hand!

