The widely held belief is that Brock Lesnar would be immediately booked into a rematch against Alistair Overeem if he decides to return to UFC. Overeem was the person that defeated him for the heavyweight championship before he decided to retire from MMA and return to WWE.
When Alexander Rusev made his debut at Royal Rumble 2014, many were under the impression that it was a permanent call up to the main roster. However, it appears that management wants the developmental wrestler to have a little more seasoning by working in WWE NXT for a few more weeks.
Alexander Rusev, the developmental wrestler who made his debut at Royal Rumble 2014, was trained by Rikishi. His relationship with the former WWE star helped help progress in the industry a lot quicker than a lot of other guys who have tried to make it to the main roster.
Rumors had persisted for several months that Alexander Rusev was next in line to be called up from developmental to the main roster in WWE, and the move took place during Royal Rumble 2014, where the big man was involved in the annual battle royale.