As we increase in understanding and have that understanding accessible - thanks to games like kerbal and world building and history modeling tools - What does fiction and story telling look like? What do games look like when people capitalize this knowledge?
Authors develop a way to visualize the world in their storytelling, GMs and its audience now have a better model of something complex. Many Authors create many competing concepts and Tribes of models compete which is best - the tribe that can communicate the best is the most popular - even if its not the most accurate. ACCESSIBILITY is what determines if its popular.
Material - Shows, Games, and other Books that are inspired by this Imperfectly communicate these concepts. These concepts Compete with older and established concepts that have so much Inertia to be changed.
Finishing Edith Hamilton's MYthology and Comparing them to my Author notes of Keneth Hite, Stephen King, etc... What changes is our ability to Manage the Attention of the Audience - to tell a story focusing on REVENGE, relationships, conflicts, virtues etc...
Future fiction (scifi, historical, and fantasy) will have DATA that probably Exists now - told in stories that few can tell a layman audience.
You learn HEMA and now the Biomechanics of a Fight but the Italian terms for Various Biomechanic Forms and movements will be lost on the Audience, you draw from Physical Therapy and Generic Exercise forms.
You learn Logistics and Mechanics of the Roman, Indus, Greek (through Alexander and Xenophon), and Chinese Warfare and extrapolate the warfare of Assyrians, Medes, Achaemenids, Ur, Babylonians, Akkadian etc..
You learn marvelous concepts - but they are all useless if you cannot Engage your audience and give them the tools to understand the logic and APPLY it.
As an Author or GM you learn to apply the logic - by letting your players predict and see if their predictions are correct. An author does this with repeated Hooks and Conflict/Tension throughout the story (mini-games) to see if the Audience can almost predict the course of the story. The GM is easier, allowing the PCs to apply and test their abilities and understanding of the system.
What it will look like 5 to 10 years from now will be very different. What it will look like 3-4 months from now as GM and Author world builds in a Budget of time will add only so much as not to alienate the audience with something so different. Something very different and profound happens when we accommodate more people to be able to enjoy the work.