I just noticed this new view mode and dialog.
Guys, if you do anything remotely as newsworthy as this, PLEASE describe it in Release notes AND post to devel list to discuss.
That said, I'm really not sure it's a good idea to make this a view mode, next to Outline and No filters. The modes are there primarily for speed, but this one has entirely different goals. I've never seen this implemented like that in other programs and I think it's for a reason. If you're interested in print preview, just set it up once, in a dialog/tab of its own. For those 95% users who don't need it, it will just make view modes much harder to figure out.
As for the dialog, apart from the fact that it shouldn't be called from view modes submenu, it really looks strange with its 4 buttons and nothing else. Is it supposed to be that way? Can we make it more useful?