#4 Hideo Itami
There are still a number of months between now and the 2018 Money in the Bank PPV. We are not sure where everyone will be in that time, especially considering that the period immediately following Wrestlemania normally sees a shake-up of the roster and call-ups from NXT.
Maybe one can call up that will happen next year will be Hideo Itami's. The Japanese sensation has struggled on NXT owing mostly to an untimely injury and an extended period on the bench. His recent heel turn has been pretty effective, and it seems like a little bit of work, Hideo can finally start to realise the potential we all knew he had.
Provided things do go well for Itami on NXT, fans would probably expect to see him hold one of the major titles at some point. Winning the MITB 2018 would practically ensure this. The WWE can always do with some fresh faces in its main event scene and while it is a disappointment that Hideo's hasn't yet arrived, there is still plenty of time.