I don’t know about your specific speakers. There are some where the rubber surrounds on woofers go bad over time and crumble, but, others do not suffer this fate. I recently listened to a terrific system using 75 year old drivers. If you had a speaker with the kind of surround that was most vulnerable to aging, it would have gone a long time ago. Even if the surround goes bad, the driver can be repaired by someone replacing the surround (often called re-foaming for the foam rubber employed in the surround).
As for the caps, they can go bad over time, particularly if they are electrolytic, but, they can often last a very long time too, so it is not necessarily the case that they need replacement.