Before I get started, I would like to say that I have a firebase crash plugin and crashlytics plugin complete but the problem is on iOS a run script is required in your main app project in Xcode
Please vote on Run scripts in on iOS
Also Firebase Performace and phone login on android require firebase 11 please vote the feature up.
Thanks, now on to roadmap
In Corona QA there is a:
Bluetooth plugin(Android Only)
Fabric ( AKA Fabric Answers)
In development:
Google sign in for Android and iOS
In the near Future:
Firebase Invites