The succession is all men:
Charles (10 - 20 years of reign puts us in the 2030s)
William (30 - 50 years puts us between 2060 - 2080)
George (30 - 50 years puts us between 2120 - 2140)
The next possible female monarch is if George dies for some reason (passing onto Charlotte) or if George has a daughter first which would mean she'd take the throne well into the 2100s.