The guessing about the new Russian air superiority fighter PAK-FA is (at least partially) over: We know now at least how it looks. It looks like a mix of YF-23 and Su-27.
The Russians seem to follow the "heavy, high-end" fighter path (as expected). I wonder how many of these planes they could afford if their economy's manufacturing sector develops well!?
edit: Old video was removed from Youtube, I linked another one.