A key line in the press release is "Die Kapazitäten des Bundesarchivs für die "Digitalisierung on demand" werden in den nächsten Monaten und Jahren sukzessive weiter ausgebaut." So more resources will be dedicated to this, rather than outsourcing copying to contractors like Selke GmbH.
I would expect the initial rush of requests will keep them busy for a good while, but in the past two years of digitisation, I get the impression some clusters of files were being digitised on request - and presumably on payment. Berlin-Lichterfelde's digitisation has seemed a lot more haphazard and incremental than Freiburg or Koblenz, with only some collections undergoing a more systematic treatment. Reichskanzlei files are one example in the past few months for Berlin-Lichterfelde. The small number of BDC SS-OA files in R 9361-III that have been uploaded only makes sense if these are user-requested and paid for, otherwise why *those* 55 SSO files?
So far in 2023, the Bundesarchiv has added 52,000 digitised files - headline count for 25.11.23 is now 403.921 files, about 3.2% of the 12 million catalogued and accessible files (another 5 million presumably fall under the 30 year rule and other barriers). There have been reports of more money for digitising NS-era records, but I'm not convinced the funds have fully come onstream yet. Freiburg has had a much clearer digitisation strategy, working more systematically through collections in a relatively logical sequence. If Berlin-Lichterfelde had a similar strategy, they could have picked off quite a few collections. Hopefully the extra money for digitising NS-era files makes itself felt separately to the Digitalisierung on demand program.
It would only take 5000 researchers with their 10 file requests to keep the Bundesarchiv busy for most of a year at current rates of progress. I expect that some files will be subjected to multiple independent requests, since unless everyone posts their requests somewhere, how will we know who has requested what? On demand systems have a crowd aspect to them, and so I expect that a proportion of the overall digitisation effort will be soaked up with these requests. User-driven digitisation. Likely that slows the systematic digitisation programs to some extent, but they are promising increased capacity, so one would hope for more than 50-60,000 files digitised in 2024.