Nick Baumgardner has an article over at the Freep about possible night games this year.
Apparently, TV holds all the power, in terms of the contract. Announcements will be made at least 12 days prior to the game if a night game. The agreement is a minimum of 3 games in a two year window, so either two this year or two next year. The two games this year are MSU and Minnesota. (I gather that there are also 3 away night games in a two year window, so this means a minimum of 3 night games a year, if I read things correctly.) The information came in an interview with AD Manuel.
On another note, Baumgardner has two other articles at the Freep. One article explains what went on with the decision to reinstate Grant Perry (short version: it was Manuel's decision.) The second article is about the offensive line. It actually has a bit of analysis and content. Short version: the current OL is much more athletic than last year. Whether or not it all clicks in 2017, we are rapidly heading in the right direction. The OL is key to everything Harbaugh wants to do.
I personally like Baumgardner's writing. If you aren't one of the Freep abstainers, and are eagerly awaiting more content, head over the the Freep and read them for yourselves.