Frameworks. I think we'll hit a point soon (as in within another D&D edition) where the core rules are intentionally simple and offer a framework for 3rd party products. It would be like 5e without the defined levels or classes or skills or feats or spells. Instead, it would handle the six core attributes, dice mechanics (d20 + proficiency + attribute modifier against a DC), hit points, basic rules for combat (initiative, action types, and stuff that's not dependent on skills), and then misc rules for things like light, vision, and speed.
That's the framework, and we'll call it D20. It would probably be a free download, with maybe a $10 physical book available. Then WotC would release Dungeons and Dragons 6e, which requires that core set of rules, and simply builds on them by adding a level and class system, skills, feats, magic, and appropriate equipment.
Until something like that happens, and with a product that has the kind of clout that WotC has, I think there will be very little major changes for a good 15 years until technology fundamentally changes how these games are played. Sure, we'll see a mechanic change here and there (action surges, advantages, etc), but nothing that really qualifies as a big leap forward; just sideways.
That's the framework, and we'll call it D20. It would probably be a free download, with maybe a $10 physical book available. Then WotC would release Dungeons and Dragons 6e, which requires that core set of rules, and simply builds on them by adding a level and class system, skills, feats, magic, and appropriate equipment.
Until something like that happens, and with a product that has the kind of clout that WotC has, I think there will be very little major changes for a good 15 years until technology fundamentally changes how these games are played. Sure, we'll see a mechanic change here and there (action surges, advantages, etc), but nothing that really qualifies as a big leap forward; just sideways.