A model of the future frigate was displayed during TADTE 2017 in late August. Some pictures
HERE (starting with the 13th picture from top).
Prior to the reveal, the design was said (in May 2017) to have grown into 138m in length, 16.5m in beam, 4500t in displacement, and 27.5 knots in projected speed although it could grow further into 5200t if CSIST cannot reduce the size of the associated electronics.
This is the general-purpose frigate component of the "3rd Generation Fleet" plan.