At this point I'd watch a Trek series no matter when it was set.
Now with that said, I think it's completely unnecessary to set the show in the 25th century. Just what would be the purpose, other than to continue the prime universe that really isn't all that necessary to do?
I'd much rather see a nuTOS show based on the films. A fresh slate taking place during the period most people equate with Star Trek, only this time there's no 40 years of canon to adhere to, and they could make whatever stories they wanted.