RUMOR: New II version of the current 24-70mm and 70-200mm GM lenses to be announced second half of this year

A source told me this:

New mark two versions of the 24-70 and 70-200 f/2.8 GM lenses are in the hands of artisans being tested. Look for announcement Q3-Q4 2021 and a release of Q4 2021-Q1 2022

Makes a lot of sense for Sony to update these lenses.