The Detroit Film Theatre website has been updated and now shows the the date of Shinichiro Watanabe's lecture to be Wednesday February 8 at 7:00.
This sucks because I have a concert that day at 8:00. Maybe I can attend the lecture then rush over to the concert?
The only other possibility is that there will be a second session on February 9, as was hinted at in an Anime News Network article. God, I cannot miss this!