On the Tony Kornheiser Show, bookwriter Greg Garcia announced that "this time next year" an Escape to Margaritaville tour would be launching, starting in Providence and the second stop would be DC. He mentioned the stop being 1-3 weeks so that seems to indicate it will be an Equity tour.
The previous World Tour went to Asian countries, Australia, South Africa, and Turkey. It is highly unlikely it will come to North America or Europe. This is a separate venture, spearheaded by the Really Useful Group, while the US tour is Cameron Mackintosh's pet project.