He may regret waiting
He'll have to face the bail-jumping charges in the UK, but once that's done he may discover that hiding out until The Donald was elected was a bad idea. Despite his fears of being extradited to the US I suspect that the Obama administration would have ignored him, to avoid giving him free publicity. Trump, on the other hand, is more than likely to pander to his redneck voters and attempt to make an example of him.
Of course, maybe that's what the narcissistic St. Julien really wants.