Well, here is a little of what I read at superbike planet. It sounds like they will be running a new motor at the start of the season, but who knows at this point. This is Nicky Hayden being interviewed..
"Q.What are your feelings about the 2008 motorcycle/tire package? What are the strong points of the new bike?
Nicky Hayden: I think that the big advantage of the new bike is the extra rpm. On the track the extra grunt on top is nice, it just keeps on pulling. But at the moment, the power is too peaky, so the engine specialists at HRC have got some work to do before the season opener. Extra speed doesn't always mean better lap times, but in race situations, it's a big edge for overtaking other riders. Everybody is working hard, and Honda is hungry to get the title back. Racing the first race of the year under lights is going to be very cool for the riders, fans and everybody involved. I'm really looking forward to that.
Q. Can you tell us about your first 2008 test sessions? How is engine development going?
NH: I like what I have seen so far, and we are working on the development of the engine. I hope by the time we line up in Qatar that they will have that new boy ready. I am excited to see what Honda will produce for us.
Q. You are working on development of the pneumatic-valve engine. Do you think it will be ready for the first race?
NH: I'm not sure that it will be perfect by the first race, but I think Honda will produce us a real weapon and that it will be ready. Qatar has a long home straight, and you need a good engine with plenty of ponies."
Link to the article.. Touches on tires too..