Slight clarification, but I think only 1.0 ran on the Crystal Tools engine. I’m fairly certain 2.0 (and beyond) runs on a new engine, because Crystal Tools was one of the myriad of reasons 1.0 failed (i.e., attempting to create an MMO with an engine that was designed for single-player games). 2.0 itself is still built upon 1.0 code, because ARR used it as framework, but the engine it uses is different. At least, that’s what I have read/heard.
As for graphical updates, I would love to see this, but I doubt it will be any time soon.