Oh I don't think, and I hope we never, see Steven Collins back on tv again (time for a Tales of the Gold Monkey reboot, christ I loved that show as a kid). And there's not a lot of reason to keep his cahracter around in a younger form. He has a pretty simple arc:I'm pretty sure Decker is off the ship now. It wouldn't make much canon sense for him and Spock to serve alongside each other.
Also, his former actor is persona non grata in Hollywood (for good reason).
Cadet on Discovery
Takes over as captain on Enterprise, oversees refit
is treated badly by Kirk the Jerk, demoted for no reason
gets back with his ex and then she dies
mates with an old NASA probe while the TOS Trio watch, and makes a new species with it, the end.