The OGL itself is irrevocable, but WotC could decide not to release new rules under it. However, I don't think that they will do it.
That would have no.impact on the production of compatible materials.
Probably. It might cause some issues if something will change in the sub-classes structures. In any case, as I wrote, I believe that WotC will instead release the new revision under the OGL.
I struggle to think of a change that you couldn't easily access using existing OGC terms. Unless they invent some wholly new game terms for the new edition, but at that point it isn't compatible any more.
I'll defer to your expertise on this topic...
What? Do you mean like adding new mechanics advantage and disadvantage? Or consolidate skill names like Spot and Listen to Perception? I can easily see them adding new material exactly like that and still call it "compatible."
yeah, I am not sold on them getting rid of it, or not, I do think that it would help if somehow it was never made, but that rabbit is out of the hat
