When will the reading of NSS meters be active?

Is there an updated timeline for when Non-Smets (NSS) meters will be readable by Bulb?
Anything within the next few weeks, months or years?

Alternatively, what would be the charge to replace my NSS meters for Smets-2 meters?

I wouldn’t bother with smets2

Care to explain your reasoning around this?

I spent years fitting them. Occasionally you will get a meter that works as it should but normally they will work for so long then stop. Sometimes they can be reactivated sometimes they can’t.
You will most likely end up having to send readings in. If you really want one then go for it