Yes, lots of reports in the press. It seems the z4 could be for the chop as BMW rationalise their bloated product lineup. However I assume this means they will not develop the next gen z4. Hopefully we will get a few years of G29 production. The production is outsourced to Magna Steyr which suggests they were not expecting mega volumes.
Been some discussion on the G29 market watch thread the last few days about this: https://z4-forum.com/forum/viewtopic.php?f=52&t=114808