This is something Toady would probably intend to do, but there are technical reasons why it isn't particularly feasible right now.
Basically, right now, time only runs during worldgen, when everything is just sort of abstractly being tabulated.
Towns and villages and caves and such aren't actually "built" until you, the player, visits them.
The game does not know how to take an already-constructed town that an adventurer visited, and put them back into the same abstracted format where time can run on them. The game doesn't know how to react to whatever the player has done to the world (especially considering the atrocities players can inflict upon a world) to run the simulation of how the world copes. The game definitely doesn't know how to keep a player-created fortress or player-remodled town running in the abstract for worldgen time advancement to work.
These are all things that need to happen eventually, of course, but these are the main reasons why you can't just punch a button that says "advance another 100 years". There isn't the infrastructure for history to advance once worldgen stops, and the player has taken a look inside Schroedinger's box. It only knows how to advance quantum variables.
Once that necessary infrastructure is there, I'm sure Toady could fairly easily add a "Rip Van Winkle - wake me in 100 years" button.
As it stands right now, as I remember it, one of Toady's games as an adventurer involved him running away from an alligator to go visit the king of a castle, and get a quest, and when he came back from the quest, the king had been eaten by the alligator, so he recruited all the guards he could from the castle, and went looking for a new castle to get his quests from, because there would never be another king in that castle again. Once something dies, the function it fulfilled is gone forever. The game is built on a massive amount of entropic decay. Societies cannot function, they can only collapse.