Lanefan
Victoria Rules
Benefits all round?I agree that D&D, 1e and 2e are largely compatible, I don't think that through evolution they would ever turn into e.g. 4e however.

More seriously: we've no real way of knowing what 0-1-2e would have evolved into, nor of knowing how other things would have gone, had TSR not spent the 1990s shooting themselves in every foot they could find.
By late 2e they were throwing all kinds of things at the wall to see if anything stuck well enough to bail them out financially. Had TSR survived then who knows, some of those experiments (which really were evolution in action) might have become part of the core. That they'd have done a 3e isn't in question; but I think it would have been much closer to late-era 2e than the real 3e we got.
There's also the possibility that, had things gone incrementally since 1995, the game would have remained split; with BECMI/RC going one way and AD&D going another. The AD&D side would perhaps have been the more experimental, and for all we know it might have vaguely got to something similar to 5e (though with descending AC and other 2e-isms still in place); while the RC side would have been the more conservative and probably grittier version.For that you need a redesign and break compatibility. The same is true with 5e, 2e does not get us there while maintaining compatibility.
That's just it: what you call 'moving forward' others - like me - might see as stepping off a cliff. Stagnation is just a derisive term for staying where you are, which can be by far the best option if where you are is the best place you can be.To make big steps in any direction, you need to sacrifice compatibility. Some of these steps may turn out to be missteps, but if you learn from them and course correct, you still move forward. I'd rather see D&D continue to do that than stagnate.