I think Bernard needs to be a little more detailed in his route guesses. What about important features like locations for Mr. Porkchop, Farm Kids, Beekmans, and (for the rest of you, not me) the beer tents? Details, we need details! ;)
My fear is that the gravel loop could be a casualty of all the hubbub this year. I am confident there will be a Karras loop this year and every year for as long as there is a RAGBRAI.