my biggest fear is poor m3 demand that drops in places like the USA and the Netherlands due to lower incentives and seasonality. But there is a possibility that demand keeps strong and new demand from the U.K. keeps the production lines at full power.
Another possible positive is of course early model Y shipments and FSD developments.
Incentives are poor drivers of demand. More typically a person starts car shopping when the current car develops problems or the odometer reading becomes excessive. The US tax credit for Teslas during the 4th quarter was down to a minimal amount. I doubt that a lack of a tax credit will prevent anyone from buying a Tesla, if a Tesla is the top choice. Meanwhile, word-of-mouth can keep demand growing exponentially.