If you have a recording of Drew as Jesus, it is very likely from the previous Vienna cast (opposite Serkan Kaya as Judas).
I've listened to a lot of his material, and this is entirely personal opinion, but his voice has gone through some great changes after his Valjean days. Maybe because he is singing extensively in German again and, as a previous poster said, it seems so much more "suited" to his voice. [The language "sits lower" for lack of a better way to describe it.] Even comparing JCS 2008 to 2005, though, there is a significant auditory difference.
I'm very curious to hear the latest recording. I have friends in Austria and Germany who were lucky enough to attend JCS 2011, and from everything that I've heard, it was mindblowing. Gethsemene earned a standing ovation.
(Now, how the heck his Curtis will sound... I have
nooo idea.)
That being said, it is highly likely that VBW will eventually release the CD on iTunes; they are usually very good about that. And it will save me some insane shipping prices, the downside of being a fan of the German musical theater world.