Personally in the case of "out of date for a long time with no maintainer", I would bring the discussion to arch-general mailing list, which most devs read. You could easily post updated pkgbuilds there, and so forth.
- [aur-general] Duplicate Package Names Jud
- Re: [aur-general] Duplicate Package Names Daenyth Blank
- Re: [aur-general] Duplicate Package Names Loui
- Re: [aur-general] Duplicate Package Names Daenyth Blank
- Re: [aur-general] Duplicate Package Names Ronald van Haren
- Re: [aur-general] Duplicate Package Name... Loui
- Re: [aur-general] Duplicate Package... Aaron Griffin
- Re: [aur-general] Duplicate Pac... Cilyan Olowen
- Re: [aur-general] Duplicate... Ronald van Haren
- Re: [aur-general] Duplicate... Cilyan Olowen
- Re: [aur-general] Duplicate... Daenyth Blank
- Re: [aur-general] Duplicate Package Name... Aaron Griffin
- Re: [aur-general] Duplicate Package Names Ghost
