I had an online chat with a CM yesterday, too. I told her I was confused about 2015 release because I had been hearing so many different things. She stressed that many non-Disney sites speculate, and their information is not reliable. I explained that I had personally been given a date (July 20) by a phone CM, and that others had been given exact dates ranging from yesterday - July 23, and general ranges of "by the end if summer" by other CMs. All she could say was that they did not have a date for 2015 release yet, and that I should just keep checking the website & blog.
It really doesn't matter what the exact date is - but Disney should know better than giving different information to every person who asks. Their standard of excellence is (should be) better than that, I think. Sure, it's frustrating to wait, but it's even more frustrating to get a different answer every time.