That'd be a lot more trouble spell re-writing for 'what ifs' than it sounds like.

Isn't it where when we replay through the dungeons, we're going through our own memories to technically relive the same instance over and over?

Plus stuff has been re-worked a lot in the past, and this sounds like something that could only be done during an expansion, but it feels like it'd take up time they could be using to better the game. I'd rather have certain abilities inaccessible and have a more simple rotation for lower level stuff. Plus if you help someone out at a low level who might be new, there's a very high chance they won't know half the stuff you're talking about, so this just feels like a waste of time to re-redo everything, again.