I've emailed the club to see if there are any details on the course (but I used my work email so no idea if they've replied yet)
Assuming that they are keeping it on road, There is a lot of scope to have a course that is more than 4 laps of Fairlands valley so I hope it's more inspiring than that!
It would be easy enough to take the course down to the cycle path next to Gunnels Way and then up Martins Way and then back the same way which I reckon would be 9 or 10 miles, and there would also be scope to send the route up Broadhall way. If they could make that up to 13 miles and do that in between the 2 laps of the half it wouldn't be too bad. Or even a loop of Fairlands Valley Road, Gunnels Way, Martins Way and Verity Way. Loads of options, I doubt (hope) it will be 4 laps of the half course!