The ceiling limitations to the current DB structure are, in large part, what put an end to ongoing work on HCDB2 (and any of my other DB work).
One potentially quick solution would be to break it down by having a DB focus on a smaller period of time, but even there you face potential obstacles.
Consider, for example, that in 2026 we still have aircraft built in the 1950s and 1960s still playing important roles in modern conflicts.