It appears as though The Fiend is hijacking the show tonight on Raw. It all started with the opening of the show with the WWE logo. You can see part of that below:
#RAW has a bit of a different feel tonight…
— WWE (@WWE) September 24, 2019
Then, while I was looking up on Twitter to see if they had the video above posted, the banner image changed from the traditional WWE banner to the following:
We will be keeping you posted if any more instances appear to happen tonight!