>Isn't the Canvas and the Viewer the same Window?
No. The Canvas is playback from the active sequence and the Viewer is a preview pane that many editors use as an intermediate stage for media selection, adding trim points, etc., before adding media to the timeline, or pulling materials from the timeline to add filters, motion maps, and so on. As it stands, the Viewer and Browser will be sort of integrated.
I do not believe there will be a "Pro" extension to any forthcoming uber-version -- WYSIWYG. X is it. Love it or leave it.
Apple does have a verifiable track record of deleting useful applications - Shake, LiveType, Final Touch (which became COLOR, renamed)...
I think it doesn't take much imagination or powers of deduction to see that the writing is on the wall -- many support forums have already been deleted -- all it takes is "connecting the dots".
If what we are left with is "Share" as a disk creation option, then that will be a very serious problem for anybody who used to want to be able to author anything with more than a "Play" button. Very definitely it means that Apple will never support anything BluRay -- and it doesn't matter what anybody's preferences are -- clients are asking for it, and my experience over the past three years of dealing with this gap is that Apple is the worst at it.
More to come, unfortunately.
jPo