Ruin Explorer
Legend
That's an interesting possibility.Sure, there is, they've openly talked about that as a possibility. And if the future is a huge "Rules Cyclopedia" supported by digital Monstrous Compendiums...well, they won't have forced anyone to re-purchase a PHB or DMG.
If they essentially went to a model more like 4E's DDI, just a lot better executed, i.e. "subscribe and you get all the rules/classes/races/items/monsters etc." (but not the text/images of all the books), well, I'd subscribe. For sure. For more money than Beyond was taking off me back when I was subbed to that. That model in 4E was incredibly attractive and effective for our group. And great for me as a DM, especially as they had a wonderful monster-building tool, where you could get it to automatically put right values in stuff, or just grab features from one monster and put them on another.
That would also likely speed the transition considerably for a lot of groups, thought it might cause a starker digital/non-digital divide. If so that split might be the split more than 5E vs 5.5E/6E.