Lets hope history repeats
The first 16:9 TVs I saw in the very early 1990's were from Philips and JVC. At that time, there was no 16:9 content, so the only way to use this set was to apply the zoom mode and clip off the black bars of 4 x 3 transfered LDs. No one really wanted one of these TVs, then along comes DVD and suddenly this is cool.
If more than just one manufacture releases this type of display, it should force studios to release sotware that is compitible.
As for Scope projectors and the end of life for lenses, I don't think so.
In fact, if this monitor shape becomes the "future" of TV, and formats like BD begin to offer true anamorphic titles, then the anamorophic lens becomes a must have, not the expensive paper weight many think it is.
Seriously, I think we will see a new format before BD adopts 21:9 as a standard, but there is no reason why TV should not adopt to an even wider frame. How good will sports look shoot in 2560 x 1080?