4. La Sombra
La Sombra (real name unknown) made his debut back in 2007 and is widely regarded as one of the top up and coming Lucha Libre style wrestlers in the world today. As a third generation grappler he has the pedigree needed to give him legitimacy in WWE's eyes and his historic family ties will touch a nerve among WWE's Hispanic crowds. He is a world travelled competitor who is highly sought after to appear in Japan, Mexico and even the US and is a multiple time champion everywhere he has wrestled. Much like Sin Cara La Sombra would need to adapt his style somewhat but he is perhaps more accustomed to the catch as catch can style of the US through his battles against the world's greatest high flyer's throughout his travels. La Sombra is young, has a great look and has an exciting, high impact move set that would go over great with the WWE audience.