Mostly an useless idea, but it might be an interesting source of mineable curiosities and easter eggs.
Think of it like this, we have found fossil remains while mining, which means quite a few things. The world wasn't created for us, life existed before us, and the land we now inhabit was once under sea. (Or the gods placed fossils to test our faith!!!!)
Basically, a train of thought for new curiosities, and a way to waste time while the server is down developing hypothesis about the development of the world, maybe even a few easter eggs like the remains from a famous warrior or the ruins of a raided village from previous worlds (Like the statues).
Please keep in mind that this wouldn't affect gameplay in any way, but you must consider if this might manage to involve you more on the "world" of the game.
(Excuse the simplicity and probably redundancy of some sentences, buts its 3am and i can't manage to think properly, especially in my second language)