The Release Team has expressed concerns regarding MATE inclusion in Factory being the most important of them the lack of co-maintainers to ensure proper maintenance in 12.3 and beyond.
I'm available to swap help (project level, not single package) with anyone who might be interest; in practice, you cover my back in MATE in case I need help (imagine I'll be away for 2 months due to anything extraordinary), and I'll cover your's.
Any of the XFCE/LXDE maintainers is interested in co-maintaining my stuff, and I co-maintain with you yours? I would rather avoid KDE, but I'm also up to that. I really would like to see MATE's future secured in openSUSE.
If this fails, the only possibility I have to get Fedora maintainers covering my back (as I'm also co-maintainer of MATE in Fedora).