#3 NXT will be established as a proper third brand and might be involved in the Superstar Shake-up
Charlotte Flair winning the NXT Women's Championship at WrestleMania 36 would be a Best for Business decision for the Black and Gold brand. In the last six months or so, the company has taken huge strides in establishing NXT as a proper third brand of the company alongside RAW and SmackDown.
As mentioned in the last point, if WWE starts counting NXT titles as World Championships as well, it would establish NXT as the proper third brand for the company. Mind you, it is NXT which goes on a head-to-head collision on Wednesday nights with AEW Dynamite and with AEW's show having a slight lead over NXT, WWE would want their third brand to get as good ratings as the other two.
The addition of someone like Charlotte Flair is sure to boost-up the ratings as she has the star power to draw more eyes to the product, which would be beneficial for other NXT Superstars as well. WWE can even take this a step further and involve NXT in the Superstar Shake-up after WrestleMania as well.