TNG episodes are NOT going to be telecined at 4K. Only A-list feature films are given the 4K full treatment since 2004's Spiderman 2 which was the first all-4K pipeline Hollywood feature release.
I know it's little more than a pipe dream, especially since they only bothered to scan the new Star Trek film at 2K for the IMAX digital intermediate.
It would be pretty awesome if a studio was that forward thinking. They would get a sharper blu-ray now and have source material for a future format release. Of course it will probably be 20 years before there is significant market penetration of 4K home video or something similar.