This is all based on one supposed memo that a single supplier, the part they supposedly supply is not known, shown to the WSJ. I'm thinking their is a lot of manipulation going on here specifically to drive down the SP tomorrow morning. If, if Tesla needed cash right now for continuing operations, there are a lot of places they could get it rather than asking their suppliers for a refund of parts previously supplied.
As for negotiating with the suppliers for a reduction in future pricing based on the highly probable success of the M3, that I can believe. I spent a large part of my career in procurement and that's an industry accepted and expected way for all to share in Tesla's future success. That part sounds plausible. This memo from a single supplier? Something stinks about that.
Regardless, tomorrow should be an interesting day.