Ah yes, I remember when I thought that was old! Congratulations on completing the first third of your life! (At least, that’s what I told myself when I hit that milestone.)
I doubt they’ll add anyone. They still have three relatively young play by play announcers (Brown, Arnold, Newman), three relatively new ex-players (McDonald, Roberts, Olson), one veteran PBP guy (Garceau) and the Hall of Famer (Palmer). I think the younger announcers did a solid job last year and will get better with experience. That’s plenty of staffing.
Honestly, you could see this coming last year when they hired all these new folks.