Yes, the 64bit, the background rendering and the other features all sound good. In fact, I am thinking of shooting some new HD video for the "virgin editing" on FCP X.
[b]STP[/b]: Okay the editing functions, filters and other tools can (& mostly are) be included in FCP, the main advantage of STP was the REAL sound editing interface and the precision editing possibilities (levels, needles and stuff). That is really the main advantage and not to be underestimated.
[b]MOTION[/b]: I think this can be doable within FCP X but a dedicated interface would provide a much 'cleaner and effective' workflow. Unless the new interface has some brilliance we shall yet to discover. But I think Motion will become a separate pack downloadable from the App store in due course, alongside with STP too.
[b]DVD[/b]: This one I agree with you. I don't think major DVD developments will happen. Potentially having a super iDVD or migrating iDVD into DVD SP (Lets call it iDVDPro). In fact, I wonder why we need an optical drive on Macs at all. Apart from playing DVD or backing up, we could potentially use an external drive and save space on the devices (MacBook Air). Not to mention that Steve Jobs even mentioned that MacBook Air are the future computers, and at that time I was thinking what he really mean by that, especially because these machines are not as powerful as their cousins MacBook Pros. Maybe he meant that the future computers may not have an optical drive, make more use of iCloud and become more portable. Hence, the use of optical drives and therefore SW enhancements for DVD may not be as needed as the market changes.
I think the next MacBook generations will tell us a lot.