I was playing with glimmer.js, it feels like you can now "NPM your way to a full app" similar to the react eco system (if you're into that sorta thing).
Our company's main application is built on top of ember 1.13. We've pushed off doing the upgrade and are leaning towards a move to react (all our mobile apps are done in RN). This might be a solution.
Just now seeing this. Honestly it's just a big project and everything else in our solution has moved on to react. Upgrading would be far less work for sure but it's still an investment.