You should just update Towny yourselves? Which you should have done instead of waiting. If you don't know how to do that, I know a guy.
Edit: But if you just want to get rid of Towny altogether, I guess that's alright too.
If you do keep towny, I propose adding some extra restrictions for making new ones. In order to prevent 200 single-player towns from being created.
From SM Skype Chat:
[14-10-2016 19:30:12] Fedgar Lurch: That doesn't mean Towny works with our deployment.
[14-10-2016 19:30:20] Fedgar Lurch: Trust me. Towny has been **** for a while.
[14-10-2016 19:30:30] Fedgar Lurch: I have over 15 different trouble tickets I have lodged over the years.
[14-10-2016 19:30:38] Shay Harris(Shayh02): Oh okay.
[14-10-2016 19:30:57] Fedgar Lurch: Keeping towny would be 100% easier, its not like I Want to do more work. Its that Towny isn't going to do what we need anymore.