What on earth could the UK offer to the EU to even think of opening a re-negotiation phase? And if you believe that the UK can somehow "out-deal" the UK during that, remember that the negotiation skills are still with the EU.
But you said you voted for desaster. You got it, be happy.
Even worse: I see no reason for the EU to even think about starting a re-negotiation. It makes no sense for them.