The (free) sandcats domain/service didn’t die with the paid service/business? I had just assumed it had.. if it’s still around and still free that’s very cool.
Yes, I have no plans to shutdown sandcats. I do have plans to rewrite the server side to use Let's Encrypt and Cloudflare Workers* in order to make it easier and cheaper to operate, but even with the current implementation it's no big deal to keep running.
It still exists, and there are no plans to get rid of it. Same with other community infrastructure, e.g. demo.sandstorm.io has been moved off of oasis and still runs as well. It's only oasis that's shut down.