Indeed, God Speed. Whatever one may think of the institution itself (and it does seem outdated), the steadiness it provides with the regular events it celebrates is an excellent means of grounding all of us with known markers for our lives. Some regimen is a healthy thing, I think, and the Queen took that role seriously, along with the concept of a servant leader.
Hopefully, Charles and William will be half as good at providing a certain steadiness to the Commonwealth - and to some extent, the world - as Elizabeth II was.