No it wouldnt.

The only way it would fill an arena is if they held it in England after Froch beats Mack and Bute again.

Then he goes for Ward to try and avenge the loss and goes for broke from the first bell and makes it very uncomfortable for Ward.

Then win or lose go for Kessler. The reason id say go for Ward first is another Kessler fight will be a war and Kessler can fight and hit hard, whereas Ward wont hurt Froch.