#2. Retaliation could be on the cards
The order of matches for The Royal Rumble is not yet known, which leaves WWE with a lot of options. Since Lynch currently has a problem with Ronda Rousey, she could interfere in her match with Sasha Banks because she wants to make her pay for losing her Women's Championship.
If Rousey's Championship match is broadcast before Lynch's against Asuka, then it's likely that Rousey will be looking for some form of retribution and when she does, Lynch will be forced to enter The Royal Rumble so that she has the chance to go on and main event WrestleMania against Rousey. This would be the best form of revenge for Lynch and it would mean that the women would be the main talking point of the show once again.