colt, unicron, take after dad, join the guard, and Flurry will be overprotect of him, and scary off any filly who get close to him.....

Realistically yes. In terms of the series plot, I doubt it; they've already spent the baby nickel unless they're actually going to focus on Cady and Shiny specifically, and this show simply does not do episodes that don't at least nominally feature a Mane 6 pony ("Slice of Life" being the exception that proves the rule).

Still hoping for that Celestia-only episode.

Edit: Realistically to all points except playing favorites. Cady and Shiny love all their spawn equally.