Why are there tons of threads about this? Nobody knows when it's going to open, it will only open when the fat lady sings. I wonder how many disagrees this post will get...
It will be on by the time you stop playing Minecraft and go graduate college. So around 2060. In all seriousness though, I think it would take couple of extra months but if i had to estimate a date, i would say November 5-10th ish.