Have you consider to add Swift as a language to write scripts in Godot?
Swift 5 it is already released for some time now.
This version brings swift ABI stability and many more!
There's swift for Android already working. A good example is SCADE (scade.io).
OS X, Linux even Windows.
Mobiles such as iOS or Android!
I do not think that cocos have to be rewritten. It might be imported. Swift works with C libraries as well as C++
Are we still working on using swift?
PS: Swift 5 open possibilities to use swift as a scripting language.