bbleaks is reporting on Twitter that they have spotted 18.104.22.1684 in the wild for the 9700. The leak has not been found to download yet. But if you are looking for the next OS, your version will likely be the .764.
As soon as it leaks, you will see it posted here at bbos!
BBOS usually does a great job on getting the word out on new OS releases. The word on .743 was a little slow however. I never got a Twitter update from BBOS on .743 which is unusual. I learned about .743 from bbleaks.