We released OktaDev Schematics v3.1.0 to add support for Okta React v4.0.0 – now with TypeScript! 
https://github.com/oktadeveloper/schematics/releases/tag/v3.1.0
Also:
Upgrades to Angular Schematics v11
Fixes testing in React Native apps
Adds instructions for creating apps with the Okta CLI