The severe knee injury suffered by WWE Champion Seth Rollins is going to have a massive affect on the company for the rest of this year as well as over WrestleMania season next year. With an estimated recovery time of 6-9 months, Rollins will likely miss WrestleMania on April 3rd, 2016 in Texas and, at best, would be ready to return around late April or May. It can be argued that Rollins has been WWE's most valuable player (or performer) since he turned heel against his Shield brethren in June 2014. He has been the company's best in-ring performer during that period as well as the best heel (it's really not even close in terms of the heel department). The absence of Rollins leaves a huge void in the WWE roster now. It's easy to think that one person is going to replace him, but the reality is that it's going to take a number of different people to step up. That's going to mean part-timers may be asked to work more, people from NXT may be called up and some popular faces could be turning heel. Here are eleven ways that Seth's injury changes things for WWE in the near future as well as some things for down the road.