No!
No GS in Metashape for now, please... the technology is too new and advancing every day; it's too time-consuming to maintain this option.
Metashape is really good, even very good, in its core application; in my opinion, AGI team must continue to move forward in this direction. I prefer cutting-edge software to software that tries to do everything, almost everything, or even poorly.
That said, making it easier to export Metashape data to GS software seems important to me.
Here's my opinion.