We reported a while back that WWE but more specifically Vince McMahon had discussions about bringing NXT star Adrian Neville to the main roster with a "Mighty Mouse" gimmick. It's now being reported that those talks have ceased recently and Neville's future on the main roster has yet to be determined. 

At one stage WWE had considered Olympic gold medalist Henry Cejudo in for that role, however he chose to pursue a career in MMA instead. 

McMahon has wanted to try out the gimmick on a small stature wrestler for a while.

Mighty Mouse was an American animated superhero mouse character created by the Terrytoons studio for 20th Century Fox who appeared in 80 theatrical films produced between 1942 and 1961. These films later appeared on American television from 1955 through 1967 on the CBS television network on Saturday mornings.