No, not officially.
But the link [1] I posted in my last post points to a TMO thread where dr_frost_dk announced, he wants to create hw keyboards for several smartphones that originally don't have one. He also asked for device suggestions, I suggested the Librem 5 and he agreed.

I haven't had much contact with him in the past, but I perceive him as a man of his word who is able to asses his own abilities. So if he says he wants to create a Librem 5 hw keyboard, I believe that he would honestly try and that it's reasonable to assume he will succeed.


[1] https://talk.maemo.org/showthread.php?t=100566