As for the involvement of Henry Cavill, that appears to remain up in the air at present.
Of course that’s way before this new Superman film was pitched so I don’t know what role his Superman would have played.”
However, this will not take the place of Henry Cavill’s Clark Kent/Kal-El, who will still exist in this iteration, with Abrams and Coates’ Superman said to be a new character.
You can currently see Cavill return to the role in Zack Snyder’s Justice League, available now on HBO Max.