A few weeks ago WWE announced Ric Flair, The Undertaker, Shawn Michaels, Brock Lesnar and Steve Austin for Raw on October 19th.
https://twitter.com/WWE/status/646762460289060864?ref_src=twsrc%5Etfw
However WWE is no longer advertising Steve Austin for next week’s episode of Raw. Austin will be interviewing Brock Lesnar on his podcast on the WWE Network after Raw goes off the air, but as of right now it doesn’t look like he’ll be making an appearance during the show.
https://twitter.com/WWE/status/653766801306726401?ref_src=twsrc%5Etfw