Oh, I see. But that is an intriguing idea!
As with many things here, making film prints would pretty obviously be in violation of copyright. So it would probably need to be done with someone’s personal film processing equipment.
If that course of action were taken, I’d presume that it would be best to wait until at least the 1080p 3.0 DEs are done. Or if there are plans to go all the way to a 4K, to wait until then.
(The films were shot in 4K resolution, right? So there wouldn’t be much point as far as preservation goes to try to get any higher resolution than that, correct?)
But presuming a set of 4K DEs was completed and transfered to a high quality film print, a time capsule might just be a viable idea!
One thing I’d imagine would also be wise to include in such a capsule would be a paper copy of full specs for a compatible projector and sound system.
There might not be any left in, say, 100 years, but it seems like the way 3D printing technology is moving now, that with a full set of technical specifications, a system could be reproduced if it was the only way to regain access to the films.
If that were done as a way to create a kind of new master, along with some way of maintaining digital copies for the purpose of distribution (perhaps some kind of official unofficial committee), that would sound like a pretty solid plan to me.