From what I read, and have heard, the rule for Multi-classing had changed, and you need to only resubmit if you weren't approved for two classes.
Example: In the Beginning you might say you're going to be a Ranger/Rogue, if you're approved, then you can take both classes whenever you feel, so long as you follow the other rules, such as both classes needing to be atleast level 5 by level 20. Leanthar would also like you to keep both classes relatively close in level unless there is RP behind why you would continue one and not the other.
The other side to this, is that if you just said you were going to be a Ranger, then to become a Rogue you would have to resubmit, and based on Character Developement and if the Admins feel you need or do not need a CDQ it may be approved without one.
This is not a -definate- answer, for certain. But, it is a timely response with the knowledge I have.

,
YotS