Should i keep this version of service.libreelec.settings ?
Yes, if further backups are desired
What will happen in the next version update of LibreELEC ?
This version is continued to be executed a long the addon version of the update is still 10.0. Keep in mind to delete the installed addon.
If mglae can do a PR and it ticks all the correct boxes, then it could be in the next release.
It's almost done.