Originally Posted by
Tumaras
Being that later than the 2nd is already busted as a possibility. That's because Blizz has said that the pre-patch only questlines leading up to release will be opened 1 per week incrementing the pre-patch story up to release (spoiler - the Kara, etc. questlines 1 per week), which they also said will only be available during the pre-patch. Since there are at least 3 of them that we know of, that's 3 weeks built-in right there. They also give us about a week's advance notice at least too since a few things will be going away with the patch, to give people a last chance to knock them out.
So with a little math, that leaves July 19th (the date supposedly leaked/rumored that also appears to be the most likely), July 26th, or August 2nd as pretty much the only possibilties. If I'm Vegas making odds imo it's probably around 50% to be July 19th, 30% to be July 26th, and 20% to be August 2nd. Pretty unlikely to be earlier than the 19th at this point, and really no chance for it to be later than August 2nd based on what they've already said regarding the weekly prepatch questlines.