Eh, I don't agree with, "if Myung leaves, DT ends." i don't think the role he plays within DT is important enough to say that DT couldn't continue without him. That's NOT an insult to Myung, it's just an observation of how DT works.
edit..
And, just to clarify - OF COURSE I don't mean that the role of the bass player is less important than that of other musicians. I just think that, with DT's music, if Myung ever left, they could easily find someone to a) play his parts and b) step right into the role that he already has, which is to come up with bass parts around what the other guys make up. It seems like Myung doesn't do that much music writing anymore within DT.... right?