For all main models, Honda has a run of either 5 or 6 years between major model change, and 2 or 3 years for the minor model change (update on the current model). Now, last summer, Honda said for the I2, they would "rush" the minor model change, with a bit more content, as the sales were not as expected (looking forward for this "bit new content"...). Considering the run of the Gen1, 7 years, 2000 to 2006, I would expect the I2 to be on a close path. This "rush" in minor model change to be on the 3rd year, so fall 2011, for a 2012 model. I would be very surprized to see something in fall 2010 for a 2011 model (but I would be happily surprized if it does happen...)
What I will be looking for with interest is the battery update their new company/partnership with GS Yuasa will bring. They said their mass production would be ready in fall 2010, so one year ahead of what I think will be the I2 minor model change, just enough to plan a new battery and output for the I2. But new battery + increase motor output is not likely to be a minor model change... so my wish list items might not be realistic...