Masters is improving, i was very critical of him at the start of his career in WWE because his matches went no more than 5 minutes. However now that he's had a few longer matches he seems or appears to know what he's doing.
His move list is a little bit awkward but i think in time he could be huge. He's got charisma but not the mic skills to go with it, i think thats just a confidence thing though.
Carlito will be huge in time, if he turns at the right time with the right storylines and he has a bigger vocabulary he'll go places.
Cena is improving in the ring but he needs more varied moves, as for his charisma and mic skills they are amazing. I just wish he had more freedom like he does on 5 questions with the champ on wwe.com because he looks a natural on there.
Ken Kennedy and Burchill have all the tools and all they need is time.
Those are all great and even the likes of Kane and Benoit could be the short term future of the WWE if used right.
However the biggest possible star who could carry WWE for years to come is Oleg Prudius. Why? Well he has the look and body of a superstar, plus he has a sort of Brock Lesnar bad ass look about him. If he has similar skills to Lesnar this guy will be massive.
From what ive heard he is excellent in most martial arts and amateur wrestling moves so if he can adapt he could be the next Kurt Angle if you will.