Rabbi Yehoshua Yankelewitz writes:
I spoke recently with R’ Moshe Shternbuch’s grandson (Dovid), who told me that he’ll give a certain “Gvir” in the USA his grandfather’s tzitzis with techeiles one day (after 120?) in exchange for support for the Yeshiva.
There’s absolutely no doubt that he wears techeiles today.
We can add this to the monster collection of witnesses to this effect.