The reason that five women got called up from NXT this week has to do with Vince McMahon believing that the women’s division on both RAW and SmackDown have gotten stale.
Pro Wrestling Sheet reports that Vince made the call shortly after The Mae Young Classic, so it wasn’t exactly a last minute decision. Mandy Rose’s name was the first name considered because they were already working on debut plans for her previously.
While there has been speculation of WWE doing a Women’s Royal Rumble match next year, there has been no indication that this was a factor in Vince’s decision.