As per the folks at the CA, despite account rollover this year, that app will still go offline:
Refresh, unwind, take a break! The 2015-2016 Common Application will be offline starting at 5 p.m. EDT on Thursday, July 21. We’re putting the final touches on the 2016-2017 Common Application, but we’ll be back on August 1 – ready and refreshed for the new school year.
Boo!