In his shoes, I would think twice - does their team really want to present their dirtiest laundry to the world - such as owing an election to a media oligarch?
As for the EU, it's a massive bureaucracy which still follows its own laws. It probably won't change track. There is no single person to change its track.
However, at this stage of the game, I have the nagging feeling that some American may downregulate Elon Musk directly, far before the EU manages to step on his precious toe.