It looks like now they are moving to partial colour interpolation now:
http://www.dpreview.com/news/2014/02...&ref=title_0_0
It probably means lower colour resolution over the previous generation.
The 4:1:1 B:R:G arrangement makes it somewhat closer to a Bayer sensor TBH as that has 1:1:2 B:R:G arrangement,although each group of 4 B photodetectors has a dedicated R and G photodetector.