Ronda Rousey recently underwent surgery on her right little finger and she remains out indefinitely not due to that injury but due to an “impregnation vacation” she recently stated. Rousey remains under contract to WWE for another two years, but according to The Wrestling Observer Newsletter, there is no guarantee she will ever be back.
The expectation internally though is that Rousey will return at some point, perhaps working a schedule similar to John Cena or Brock Lesnar, with the peak being a one-on-one singles match against Becky Lynch. The obvious destination for that would be WrestleMania 36, however, if Rousey does get pregnant this year, that would be an almost impossible timetable to make work.