As announced by Renee Young in this news update:
EXCLUSIVE: @RondaRousey will celebrate her #Raw Women's Championship, @TheDeanAmbrose will battle @HEELZiggler, and @TripleH will make an appearance TONIGHT on #Raw! pic.twitter.com/J1QKzZ2ZG4— WWE (@WWE) August 20, 2018
She specially mentions the fact that he’s got an upcoming match to promote, his “last time ever” battle with The Undertaker at the WWE Super Show-Down event on Oct. 6 in Melbourne, Australia. That’s still over a month away, however, so feel free to speculate on why else he could be making an appearance.
Follow along with this week’s episode right here.