tzeitel - they actually contacted people with reservations quite a while ago. I have had a replacement ADR @ Via Napoli made by the manager @ Tutto for a long time - just checked my e-mail - since October 21st (we were originally booked for April 4, I think).
They contacted me by e-mail, perhaps it went in your spam folder or something? I think the message was to write back to them if you wanted to book Via Napoli or something else and they would take care of it. Actually here's what it said:
Dear Guest,
We thank you for your interest and reservations at Tutto Italia. As you may know, Tutto Italia will be closed for renovations starting in January 2012. The schedule for these restaurant enhancements has been extended through April 2012.
We are happy to change your reservation from Tutto Italia to our other restaurant, Via Napoli. Or if you like, we can book your reservation for Tutto Italia in May on the day of your choosing.
I have attached the menu to this email to give you a better idea of what we offer at Via Napoli. Please let us know how you would like to proceed.
You need to call Dining if you think you still have a reservation there because they won't be open.