In all honesty, I don’t expect to see those archives opened nor made available in either my lifetime, nor those of my children.
I’d predict it will be something like 2095 before the information is ever seen, if then.
The information is, after all, recorded on paper, and the paper is of LOW quality, which means the paper itself most likely will not physically last long enough to be examined as to information content.
In parallel with this is that the information on the paper is most likely certain to NOT ever be recorded digitally.
It will thus be lost forever, and disappear from history, and human memory.
This will have been achieved quietly, without the attendant cries of “barbarism” as would have arisen from the academic and historiographic communities had the paper and information been destroyed by Govt. fiat in 1945.
Kind and Respectful Regards Deaf my friend, Uyraell.