I just uploaded a first testbuild for manjaro-xfce 18.0.
We have labelled this beta-1, meaning it is intended for collection of your feedback and spotting any possible issues.
This minimal build uses xfce-gtk3 packages, Adapta-Maia gtk-theme, Papirus-Maia icons and original wallpapers by @muser .
Calamares(-git) is at version 3.2.0.r4579.6f4dff78a.
Kernel used is linux416.