#2 Carmella will get a major push
Carmella has been racking up the wins and she scored a pretty big victory against Mandy Rose this week. I'm guessing that the reason for the same is that Bayley will need babyfaces to work with if she carries the title until WrestleMania. I'm guessing that she will manage to defeat Lacey Evans at their next encounter and will need opponents to feud with.
Carmella is ideal in a sense because she's more popular than ever after her whole stint with R-Truth not very long ago. Her relationship with Corey Graves is also very public and it is entertaining to hear Graves' reactions every time she is on screen. Carmella segments are a lot of fun to watch for fans.
I doubt that she will become the SmackDown Women's Champion in 2020 but I'm sure she'll be near the top of the food chain since WWE is doing a good job in building her up.