NO NO NO
No, it is not worth the wait. Sure will be a nice improvement, but what are you going to do when it gets released? Wait for the next update!?
This is technology people, it is constatnly moving, sure i can understand people waiting a few weeks etc to get recieve the most upto date computer but I say just take the plunge and buy now, otherwise you will forever be waiting for the 'next one' - technology doesnt stand still, nor can you, whatever you buy will be outdated sooner rather than later...