Endeavour is Arch and Manjaro isn’t. Endeavour is not a replacement for Manjaro for that reason alone.
“I installed distro B over distro A” does not mean “distro B is a replacement for distro A”. They can be wildly different and it could be very misleading for someone looking for something that’s actually similar to distro A.
It will fall through much faster than that. I’m thinking two years, tops.