#3 No surprise returns or WrestleMania challenges
The confirmed matches for this year's WrestleMania so far are -
Seth Rollins vs Brock Lesnar(c) for the Universal Championship
Charlotte vs Ronda Rousey(c) {vs Becky} for the Raw Women's Championship
Other than these, no matches have been finalized. With the rumors of a lot of stars missing WrestleMania this year, the lack of star power might be a huge issue for WWE.
WWE desperately needs some of its top stars to return and set up feuds for the WrestleMania season. Superstars like Kevin Owens, Sami Zayn, and Bray Wyatt are the top contenders to make their return to the ring soon.
The ratings would also boost-up if a returning legend shows up at FastLane to set up his/her WrestleMania match. Someone like Batista showing up out of nowhere and challenging Triple H for a match at Mania would be a huge moment and would get a lot of mainstream attraction that WWE needs.
Do let us know your thoughts on how WWE can make FastLane a good PPV.