Well as long as you have one now that you're happy with, then I'd say it's definitely worth the wait to have the one you
really want. Patience is rarely followed by regret
I ended up not waiting because deep down I wasn't really sure if I will like the new design, and I really love the current Paperwhite the way it is.
I was kind of torn, actually. Not crazy about the lack of a bezel, but I do
so love the return of page-turn buttons. Although I'm not entirely sure I will like how they're going to be implemented. (not keen on squeezing the edge of my kindle)
But I guess those things remain to be seen.