Sure. We have plans in production for all major Mac based Applications and Final Cut X is no exception.
We can't announce anything until the titles have been confirmed.
Why do you want the training video before the product is released? This is often not possible for a variety of reasons...
Apple have very, very strict NDA's where their unreleased products are concerned. Nobody who is privy to seeing/using their unreleased software may divulge ANY info, let alone create and release a video tutorial.