The loss of instant sheet film has something of a knock-on effect. Those people still using film in the studio can no longer proof their work and discuss it with the rest of the team. They can no longer lay up a cover shot using an 8x10 Polaroid. Conversion to digital looks like the only way forward. That means they won't be shooting lots of sheets of Ektachrome, they won't be having that developed at the local pro lab. Even in the photo district of New York E-6 labs are already struggling. The loss of Polaroid sheet film may very well mean that the bulk of their remaining customers either retire or switch to digital.
There's nothing here that could not have been foreseen, and anybody who relied on the existence of Polaroid film has probably thought a lot about Plan B.
I'll miss sheet Polaroid. Fuji don't make instant sheet film at the moment. Maybe they will in the future, maybe they won't. They make a limited range of pack film, of course.
Best,
Helen