That all seems to make sense. The R10 has almays been a handling beast in the slower corners due to the longer wheelbase. You also have to figure that IF diesel remains a priority for Audi,... that the 2011 regs would reduce the diesel displacement to a number much smaller than today (maybe in the area of 4.0L or so). The only area that i might disagree is the coupe bit. The changes to the wing are significant. This may be enough to sway Audi in the direction of staying with the open topped chassis. I don't know if this picture is real or not, but if so, tha wing is TINY! (if real, it also shows how quickly Audi has taken to the evaluation of the new rules - brilliant!)
edit: sorry, after closer inspection, this picture is indeed a fake!