Retention Sets and transitioning to new tape technology.

Hello,
There are customers who need to retain data for more than 10 years. However, a problem arises regarding technology lifecycles, as servers, disk arrays, and tape libraries are typically replaced every 5-10 years.
Consequently, the customer faces the challenge of migrating their Retentions Sets to new technology — in my case, a new generation of LTO tapes. 
I have been investigating the options for moving Retention Set data currently stored on LTO6 tapes to the new tape generation LTO9/LTO10.
The existing data movement options within the SP server always have some limitations and cannot be used.
MIGRATE STGPOOL
- RETENTION pool does not have the nextstgpool parameter.
MOVE DATA
- You can move files from a retention storage pool volume only to volumes in the same retention storage pool.
MOVE NODEDATA
- You cannot move node data into or out of a retention storage pool.

I have consulted this issue with IBM Support, and there is no other option within the SP server other than waiting for the Retention Set data to expire.

The only solution — which is very time consuming — is to restore all Retention Set data to temporary disk space and then create a new Retention Set/Archive on the new tape technology.

Would it be possible to consider a method for migrating Retention Set data on tapes during technology refreshes?

Thank you
Michal V.

I found a similar Idea in the "Future consideration" status, but there is still no progress.
https://ideas.ibm.com/ideas/SPF-I-3261