--Side note: I wonder how far out the builder really is. At least once a week we have been given some sort of information on it, plus images and such that make you believe most of the back-end must be finished (I work in software development; you don't usually show the enhancment to your clients until you're close to production). I'm banking on a 30-60 day window.
Well, given that WotC has been bitten before by showing screenshots, videos, etc from software that was not in a state where it was nearly ready for release, it is probably safe to assume that if they are showing off screenshots, and talking about it in articles, that the release date is sooner rather than later.
In other words, if I were a betting man, I wouldn't bet against you.