Evan Bourne is a flash in the pan. Hes all exciting and flashy, but it'll fade. Afterall, he's no longer doing anything new and innovative in his matches. Hes repeating the things he's already done. When he begins either continuing to add new, unseen (on WWE Television) moves, he'll start to grow again, until those moves get old and repeated.
The reason why I feel Bourne won't work, is because unlike that of Mysterio & even Hardy to a degree, Bourne has no character. And especially no "voice". Hes just some quick, jumping bean, that people love to watch - but only because they know hes going to half attempt to kill himself. Think Benjamin, only white.
Bourne had his best shot at proving he could become a Champion at Cyber Sunday, and it was a good match.. but on a Brand thats once again altering to the bigger style of Wrestlers (Swagger, David Hart Smith, Vladimir Kozlov) and trying to push those that are still relevant, (Finlay) there just isn't any room for a guy who seems like hes going to be killed if hes ever caught.