The backcover of the North American release of the Kong Kong movie Ip Man 3 confirms that there will be a DTS:X Track on the disc. Based on the HK version, it should be the Cantonese track as it is the one available in that format over there.
The Blu-ray will be released by Well Go USA on April 19th.
As usual, I updated the list of Blu-ray movies with DTS:X on the site.