Based on the lead times NB operate on (TC red/yellow kit has only just arrived in stock with us, DC black/orange was just before Christmas, ordered in the Summer) i highly doubt the pink/black will be a new range for the UK 2016 Summer as there has been no word from the brand about a new range for us to buy.
I suspect this is a special edition for the pink ODI (assuming SA still do one?) given NB's historical and ongoing links with SA cricket. There was talk that Steve Smith had a pink/black bat for the pink test that was unfortunately washed out.