#1. Missing WWE Superstar Mia Yim (Reckoning)
Mia Yim's WWE main roster run has been a bit troubled so far with her debut as Reckoning and a fairly disastrous run as part of the RETRIBUTION stable that ended horribly.
Yim has been off of television since RETRIBUTION disbanded when T-Bar and Mace turned on the faction's leader Ali and left him lying in the ring. Since then people have been patiently waiting for Reckoning/Yim to reappear in WWE somewhere.
Female superstar says she inspired John Cena turning heel HERE
Having her come in and replace Bayley in the WWE SmackDown Women's Title match at Money in the Bank would be a brilliant way to bring her back into the fold, especially if you let her shed her RETRIBUTION stuff and re-debut as Mia Yim.
Yim and Belair would put on a great match as well and it would truly be a reintroduction on a big stage that Yim deserves. Mia Yim is definitely my pick for Bayley's replacement.