Chrome has become a powerful platform for developing web applications and ChromeOS' performance, stability and security is perfect for a device that is used much longer then phone. With the emergence of web assembly, I can see developers being more effective writing web applications and directing tablet users to those same applications as desktop users.
For me personally, I spent most of my time on the tablet using the Chrome browser. Many of the Android app that I use are basically just the web application wrapped into an Android app, but for those time that only a native Android app is available ChromeOS can now run Android apps alongside web apps.
I think my next tablet might very well be a ChromeOS tablet and I hope to see ChromeOS replace Android in this space. I also hope to see developers move towards web assembly and build more powerful web apps using languages such as Go (web assembly currently being worked on).