Bubba Ray Dudley teases 'Extreme brother' coming to Raw tomorrow

There have been rumors that after Tommy Dreamer joined The Dudley Boyz in their fight against The Wyatt Family, another ECW original would join them at some point to make it a true 4-on-4.

Now, Bubba Ray is teasing exactly that for tomorrow night on Raw:

Just got to #WWECharlotte. Also, just got off phone with an EXTREME BROTHER!! DO NOT MISS @WWE #Raw tomorrow night!! @WWEUniverse

— Bubba Ray Dudley (@BubbaRayDudley) December 6, 2015

Spike Dudley, perhaps? That would be silly, of course, considering who the Dudleys are up against, but it would undoubtedly get a big pop. There are other options, like Rob Van Dam.

Who do you think it will be?