From Star Trek: Spock and Number One to Return in Short Treks:

"I would be remiss in saying you’re going to see Spock again on Discovery because we’ve obviously jumped so far into the future that it wouldn’t make sense... but the the idea of bringing Ethan [Peck] back, and Anson [Mount] and Rebecca [Romijn] and the Enterprise, I mean, we loved it so much, that to find a way to do that is definitely something we’re thinking about a lot."