According to their 2022 business plan, sometime in 2023/2024. There are two sections left to clear: Palmdale to Burbank, and LA to Anaheim (they cleared Burbank to LA earlier this year if I remember correctly):

> Our last two project sections, Palmdale to Burbank and Los Angeles to Anaheim, will be advanced in 2023/2024

https://hsr.ca.gov/wp-content/uploads/2022/05/2022-Business-...