I'm not trying to start anything with this post so please dont take it the wrong way. But for some reason after reading the WoTC page on this product, I got the sense that this is the end of the 4e line itself... Did anyone else get this feeling as well?
Since nobody outside of WotC has any hard sales figures for 4E D&D, it's hard to say exactly. A pessimist may see it as a harbinger of "the end". An optimist may see it differently as a sign of the "new beginning" of success.