I think the Authors of Pain will make their debut at the Royal Rumble or on either the post Rumble Raw or SmackDown. They're challenging for the NXT Tag Team Championship and if they don't regain the titles, which I think is all but guaranteed not to happen, then there's no reason for them to remain in NXT. If they are main roster bound, they should bring Paul Ellering with them as Akam and Rezar are a couple of guys who shouldn't talk very much. For one thing, the few times they do speak it's basically the old "scream as loud as you can" bit where they try to sound intense but not speaking often also lends them a mystique and they're also just a couple of bruisers who don't need to speak often. When delivering a verbal message is required, just have Paul do his thing with the gloom and doom the AOP bring and things'll be fine.
While I know this is a long shot, I wouldn't be surprised to see Lars Sullivan hit the main roster this weekend. Sullivan is doing quite well in NXT right now and I wouldn't be at all surprised if Vince just wants him called up. I don't think he's ready but he's far more ready than Braun Strowman was and SmackDown is in need of a monster heel. I don't think he'll be moving up anytime soon, but I think there's a slight chance of it and, as I said, it wouldn't be at all surprising as Vince has a love of any and all things alpha male and Sullivan's dominance as a monster heel fits in with that.
"What Do I Know Of Cultured Ways, The Gilt, The Craft And The Lie?
I, Who Was Born In A Naked Land And Bred In The Open Sky.
The Subtle Tongue, The Sophist Guile, They Fail When The Broadswords Sing.
Rush In And Die Dogs - I Was A Man Before I Was King."
Conan Of Cimmeria