Leo Tonga should be a good addition, wonder if they'll present him as the Bullet Club young boy like they did with Cody - he's still very green, only a handful of pro matches to his name, but he's Haku's youngest son and directly trained by him, so there's potential there. Needs to bulk up a bit, looks slightly lanky but his height should serve him well in Japan.
Speaking of tall NJPW people, apparently Cody Hall is in NOAH now. I can only assume he either didn't like the way NJPW handled his injury or NJPW told him to go work there.
The impression I got is that he wasn't happy with how NJ looked after him post-injury, a "go home, call us when you're ready" sort of thing. But it's not like NOAH would do anything differently, and are in less of a position to do so anyways.
I think Cody's got potential, but you always knew Japan's just a stop-gap for him - once he's got that experience and a bit of buzz behind him in a year or two, he'll be NXT signed.