It’s been reported previously that the contracts of AJ Styles, Shinsuke Nakamura, Luke Gallows, and Karl Anderson will be up in early 2019. Styles is most likely going to resign with the company and rumors have stated that the other men will most likely remain with the promotion as well.
However, there is interest from New Japan Pro Wrestling in Nakamura, Gallows, and Anderson to return to the company, according to Dave Meltzer on Wrestling Observer Radio. There has been no news on renewals coming up.
As previously stated, it's expected that Gallows, Anderson and Nakamura will stay with WWE; however, Meltzer noted that there's talk of Gallows possibly looking to return, but that was not confirmed. Anderson will likely stay here in the States as he has a family to take care of.