Who — or what — is Wyatt 6?

It was a number of weeks ago, right at the end of May, that the artist formerly known as Bray Wyatt emerged from his slumber on social media to make as clear as his cryptic self possibly can that he’s about to make a return to pro wrestling. He changed his handle to ‘Wyatt 6’ and asked for more patience but said ‘it’s almost time.’
That time is drawing ever closer.
We know this because the Wrestling Observer has reported that a trademark was filed by Windham Rotunda for ‘Wyatt 6’ for the following purposes:

IC 025.