That is a long way off. I would guess that no one would want to quote you a price yet since everything is so fluid depending on what kind of hotel contracts they have in place.

For sure Chiang Mai and the North is a great idea. Take a trip to Doi Tung. It was the estate of the King's mother and her Swiss-style chalet can be toured. The place has been turned into a giant botanic garden. It is up closer to Chiang Rai. It was one of my favorite places in Northern Thailand.