I think the pre-order scheme that Yam ran on the S10 gave them a pretty good feel for what demand would be like (for the first year anyway), so I doubt there is very much excess inventory of S10's and not much incentive to cut prices. Besides, they are already a lot cheaper than competing models, it's a bit much to expect eh?
There may be a $200 (or so) rebate available in the fall, but I certainly wouldn't be missing the whole season just to save $200.
My bet is that a 2013 model will have a changed color scheme, that's about it. There a no glaring weaknesses in this bike that they need to change in order to keep selling them.