While whether or not Rey Mysterio will be returning to WWE in near future is yet to be seen, the company is already teasing a huge match for the former World Champion.
WWE recently posted a video on their Official YouTube channel under the Fantasy Warfare series and teased a match between the Master of 619 and the current WWE Champion AJ Styles:
— WWE (@WWE) February 16, 2018
It’s worth mentioning here that back in 2016 the company posted a similar video teasing a match between Brock Lesnar and Goldberg which ended up becoming a reality just a few months later.
Though it should also be noted here that Mysterio is currently scheduled to work NJPW’s Strong Style Evolved event against Jushin “Thunder” Liger on 25th March.
So even if he does sign a contract with WWE it’s likely that he’ll make his return to the company only after he’s done with the NJPW show next month.