I would love a web client that connects to SeriesGuide Cloud. In my opinion, this should be given top priority before any other versions of the app. With a web client, anyone with internet access can easily track their shows!
My suggestion would be to get a Trakt account and sync SeriesGuide to that.
What @olliebean said. No plans for a web interface for the time being.
I would also love this. Whenever I’ve used this app with third party syncing, I’ve ended up with shows reappearing and all kinds of issues.