Twin Peaks archive twitter has unfortunately tweeted that they're 99% sure that the revival is being filmed digitally
I posted that based on the fact that I watched filming for nearly 5 hours and never once saw anything close to a film reel. Also, the camera was fairly small.
Not really much in the way of new info: http://www.hitfix.com/galleries/twin-peaks-revival-whos-in-whos-out
I've read people saying that too, but I honestly haven't found Jennifer confirming anything anywhere. Her Twitter and instagram have nothing about it.
only source i can find is someone who posted it on reddit https://www.reddit.com/r/twinpeaks/comments/3mrapz/catherine_coulson_the_log_lady_has_passed_away/
"Today, I lost one of my dearest friends," - David Lynch http://www.hollywoodreporter.com/news/catherine-coulson-dead-twin-peaks-827805?utm_source=twitter
I remember David Lynch praising digital after the release of "Inland Empire" and saying it would always be his choice for any future work.
He's a kooky guy though. I noticed that Showtime used him in their latest promo. I know they plan on repeating the series, but still...