We're almost there with the dub scripts.
In Xanadu 1, a lot of the lip-movement in cutscenes isn't really synchronized at all. It's animated with a constant-interval cycle that has no relation to what the characters are actually saying, and continues even if they're momentarily saying nothing. In a situation like that, I think it's best not to try too hard to have the English dub match the lip movements, so I'm not going to worry about it.
However, in Xanadu 2, they made a lot more effort in this area. It's not perfectly matched, but at least the characters' mouths stop moving if they pause between sentences. Making it so that there will be no English-speaking during these pauses is the last major round of tweaking I have to do, and I've about finished it.