Elon Musk is kind of weird towards public he always play like some childish game where he wanted the public to look at him as he is trolling but always make sure to come on top, If ever Elon Musk is plotting something it will all end the moment Tesla sold their bitcoin so it is a possibility but it will cut off all possibilities on crypto related for Tesla unless they make sure that the public will trust them that they wouldn't sell it which is hard considering the current situation.

For me selling it is not worth the trouble and if it only decided by Elon Musk and not as a whole company he could've sold it already but if the company's image is involved I don't think it happens.