Cisco hasn't exactly changed their minds, but has made some - ahem - slight adjustments for those current CCIE Voice holders and how they may transition to the new CCIE Collaboration. Three options are laid out quite clearly here on Cisco's Learning Network page. Note that option 2 (what most previously thought was the only designated path) does expire on Feb 13, although that's Feb 13, 2016, so there is plenty of time to make your decision.