What issues were you facing that kept you from updating in the first place?
I am using xfce and didn’t need to keep xfce-power-manager back. In fact I am running with the latest version installed.
archlinux-appstream-data seem to be pamac related. were you experiencing issues with pamac?
Anyway you can test for yourself: update those packages and if you experience issues you can revert back to them by installing the downgrade package from Arch Community Repo and using it to downgrade the packages to the versions you are currently using.