Version 0.2 of PSSM (pacman self system maintenance) released just now. Added y/n check before script runs to ensure user understands repercussions of upgrading Arch/manjaro packages before they begin script.
Just released Version 0.1 of my "Pacman Self System Maintenance" or "PSSM" it is a shell script I wrote to help me keep pacman packages and repos clean and upgraded. Check it out on Github.