I hope Gaga does what Britney did with Glory. Release the album a month and a half later after the first single. Perfect Illusion Sept. 9 and LG5 on Oct. 21 (give or take a week). Then I think the tour will start in spring 2017, maybe around March. I think it will go on until Dec 2017 / Jan 2018.
Don't think she has the star power to tour around the world anymore. She should accept something like Vegas Residency (if they even want her, since she's not even as relevant as Britney anymore, apparently).