Actually, it looks like either Isle of Mann TT or Pike's Peak will be next.... 
...but one adventure at a time.
-RJP
As an ex motorcycle roadrace cornerworker (local, nationals, WSB, and USGP), Pikes Peak is easy. They launch the bikes in waves of 4. Lower half of the track is paved, upper is packed & treated dirt. Supermoto and flat track style dominate. The only problem with PP is going off the edge, where there can be a 2000 ft drop, but with bikes there's little chance of that happening. You'll lose HP as you go up, making the bike slower. A run up to the top will take around 15 minutes.