The 52x32x52 LTR-52327S is supposed to be arriving soon:
http://www.liteonit.com/english/english ... asp?show=3
Is it worth the wait? Hard to say. The most obvious improvement would be the increase in rewriting from 24x to 32x. The current incarnation of their top drive, the LTR-52246S, uses CAV for rewriting, yielding a rather sorry average of at most around 18x, and often even less. Your typical 16x CLV rewriter is faster in many cases. Boosting to 32x should improve this, but where are we going to get 32x CD-RW media? I've still seen no hint of it. And there still isn't much selection of 24x CD-RW media. So it might not be that useful. Also, you have to ask yourself how much rewriting you will actually do. Some people do a lot, some not at all.
Anything beyond that is still in the realm of speculation. But the current drive is quite good in all other respects, so I wouldn't count on any breakthrough in the new drive.