On the paralay site you can find a CG image of what looks like a stealthified, tailplaneless MiG-29, called the I-2000. On Matej's site you can find a drawing of MiG izdelije 1.27 PAK FA which is a far cry from 1.44, or even 1.42, with no canards, different shape of the vertical tails and ventral, but rearranged intakes. If you speak Slovak, you can even analyze the technical data( length:18 m wingspan: 12.5 m, height 5 m, max. takeoff weight 21.2 t, engines: Klimov VK-10M, max. speed: 2200 km/h, ceiling: 19 km) for the two variants(one being a flying wing) of the MiG 1.27 2002 PAK FA submission. Obviously, the data are mere design calculations, and what the true designation or shape of the design was will probably remain classified for some time to come.