Good for him, good for NOAH. At least in WWE he won't be punching above his weight, and NOAH can finally put some proper heavyweight onto his place on the totem pole. It's gonna be Marufuji, though, so they're doomed anyway.
Someone on reddit said Kenta said he was going to the major leagues. A translation of NOAH's announcement didn't say that so I'm guessing he said that on his personal facebook, or twitter, or some interview I haven't found. If this is the case, NJPW may also be an option.
Pretty surprising to see considering KENTA was a NOAH guy for years. I'd be surprised to see him go to WWE though. WWE has a terrible track record for using Japanese guys and I don't see KENTA being much different.
Elsewhere, I've seen someone mentioning possibility on Daniel Bryan gaining some influence backstage, which might not be super large, but strong enough to be able to recommend few names here and there. Other than him, Yoshi Tatsu, and maybe Regal/Finlay, I really have no idea who'd push for the signing of KENTA. With Bryan sticking up for him, KENTER actually has decent chances.