[lllr_finger]

The good news is this is already happening - lots of Java orgs in my market (not SV, but still a large US market) started working on new server-side things in Kotlin a year or two ago. This includes several Fortune 100 companies, so not just startups or smaller, more "nimble" companies.

[pjmlp]

Are the same ones that were jumping into Scala 10 years ago, and into Groovy before that?

I love those porting back to Java projects after the pixie dust fades away.