Jennifer, I'm sorry you keep asking and not getting an answer. Mark Pawson and/or Steve Pattison will have a route, hopefully they will post it. It was not submitted to the YVAA with the details.
With it starting and finishing at Round Hill, I can only assume that it uses the same route as last year's WYWL race which takes in Black Carr Wood using the disused railway and the hard bit of the "Club 10k" on the way out and back - yes the dreaded climb on the return!
As I say this is just an assumption, hopefully the organizers will correct me/add more detail shortly.
Anyway, you've registered now, you can't back out