What future developments? Kodak film can't be made any better. It's perfect. That's like talking about anvil technology on ways to make a higher quality anvil. It is what it is and doesn't get any better than that. They can make Kodak film just like they're doing till the rapture, or the cows come home, whichever is first.
Other things they might coat... flexible solar panels come to mind.
Nano technologies that produce film that is better and or cheaper or both that could be implemented to help kodak save on costs and produce film for longer into the future... any number of reasons we can't think of or have the technological knowhow to understand YET.
Historical societies are notorious for ruining the lives of those that "used" to own buildings before they step in and say "well you can't install a new better x-device because it didn't exist then, you'll have to just fix the broken one at 4 times the cost" this ranges from simple things like a new heating system, to things like a new roof, or the materials needed for a new roof that have to be sourced from more historical methods and places ... it's laborious, costly, and inconsiderate of the people who actually built the structures.
A friend of mine grew up in a home that George Washington stayed at on his campaign... it's OLD, the house had been built by the owners great great great grandparents and the family had lived on the property the entire time, but the historical society got wind that they were going to renovate the house because it needed new internal ceilings and all sorts of stuff to make it habitable, and said "no you can't do that, it will ruin it's historical-ness" and they actually spent the entire family fortune to defend this house that THEY OWNED AND HAD BUILT THEMSELVES.... and some idiot thought they had the right to have a say in what happened to their own damn property.
Well they are now broke, but they won, except now the house can't be worked on because there is no money, and it's falling apart...
Historical societies pretend they are doing good and preserving history, but all they really often do is ruin peoples lives... and cause trouble.