It's definitely not the 16/1.8 IMO. That would likely have a shorter MFD (in line with the 20/1.8 G), and/or a petal hood*, and/or a larger filter thread than 67mm (unless they go for Laowa levels of vignetting, but since it's a GM I'm guessing they'll aim to do better there).
* (although this could be a pre-production or disguise, but that seems unlikely with the GM badge hanging out in the open)
35/1.4 GM seems likely, didn't SAR comment it'd be slightly larger than the 24 GM? That could've been wild speculation but going off this pic it seems probable. I'm gonna guess that at best they'll price match the Sigma f1.2 DN... So $100 more than the 24 GM. Personally I hope they price it higher still so I'm not even tempted.