http://www.newyorker.com/culture/culture-desk/thoughts-announced-return-twin-peaks
Bit of a cautious, negative writeup in the New Yorker.
I think there are plenty of reasons for optimism—Lynch and Frost are both back, it's only nine episodes, it sounds like McLachlan will be back, the story actually has plenty of unfinished business making a continuation logical. Also despite the passing years Lynch still hasn't sold out and his films have, if anything, gotten weirder.
So although reboots suck this could be the exception that proves the rule.
I'm a fan of Fire Walk With Me but the compressed running time of a feature meant it couldn't interleave the supernatural elements with the soap elements that balanced out the TV series. There will probably be more of a mix in a continued TV series, but also you'd expect the type of high tension story beats we get in modern day cable dramas, which might change the feel a fair bit. You would have to think McLachlan will be back as a villain of sorts.