He'll probably run it into the ground. I've been reading and hearing rumors that he wants to make it a premium social media site, charging users anywhere from $2-15 per month to verify your account and get a blue checkmark and the rest of the premium features they'll roll out. He also wants to integrate crypto payments - probably using Dogecoin for regular payments and Bitcoin for other serious services - i.e paying Twitter influencers to retweet your posts or promote your product/business/music/artwork, etc.