Harper has been off of WWE television since August, after Bludgeon Brothers partner Erick Rowan was sidelined after tearing his bicep. Harper continued to work live events until the start of October, at which time he too was sidelined after undergoing wrist surgery.
For the appearance in Rochester, Harper used his old Wyatt Family alternate theme (the "Swamp Gas" song he'd also use as a singles wrestler), and dressed in his standard non-Bludgeons attire. With Rowan now acting as bodyguard for Daniel Bryan on SmackDown, it makes sense that Harper would abandon the Bludgeon Brothers motif as well.
It's not clear if Harper is going to remain with the Raw brand, or if he merely appeared on this show, due it happening in his hometown.