In The Wing event she said "US summer tour" so that won´t take her more than a month. I´d say it will probably be a 20-date trek since mid June to mid/late July.
Her schedule for 2019 might be something like:
feb/march - may = Hustlers shooting
june-july = US Tour
August-October = Marry me shooting (also WOD shooting if it gets renewed by NBC for a 4th season),
November/early 2020 = International dates of the tour
Beauty is beauty, whether is black or white