So... Just for the sake of argument: Let's say Musk -does- by Hasbro. What is the worst case scenario?
1) A bunch of toy lines either get changed dramatically or more likely the quality/variety drops like a rock as he looks for every corner to cut. Transformers and GI Joe get a new focus on a smaller group of central characters to save money who get more options for them but less global variety. Probably the characters from the 80s Transformers movie because of his personal nostalgia. My Little Pony, Princess Guinivere and the Jewel Riders, and other lines made for girls either get cut entirely or reworked drastically to try and attract little boys, -too-, to increase engagement. Musk's personal Transformers collection skyrockets in value because they're no longer being made.
2) Hasbro's Board Games (Yahtzee, Scrabble, Monopoly, Etc) are either sold off piecemeal to other companies for the value of their trademarks -or- get a massive "Online-Only" push as videogames and the like. If something can't be sold off due to contracts, expect it to be dropped in production as Musk throws a tantrum and starts judge-shopping for someone to nullify that contract. (This happens in the toy lines, too, if we're honest, but in board games it happens much more often)
3) Magic: The Gathering suddenly gets a boatload of cross-promotions. We're talking Mishra in Fortnite, 80s Cartoon D&D deck promos, movie tie-in cards, etc. AI Art? Every card. Hell, half the game will be AI generated abilities, too. "Grok, read all the rules for Magic: The Gathering and provide me with 10 new card abilities that are not currently in the rules."
4) Dungeons and Dragons. AI Art everywhere. AI Writing everywhere. Musk slashes the staff drastically in order to try and get more money out of it. Expect tons of crossovers and fanwank material as the settings dwindle and vanish. But a ton of racism, sexism, and other bigotry? Will flow out on his Twitter Posts, not from the core rules (Unless the AI Writing happens to be bigoted). The most he'd do is a kibosh on "Wokeness" for the writers who survive the purge.
Mostly that means not adding more content with LGBT characters or specifically making space for them or ethnic minorities. No more tacos appearing in Heroes Feast, no more Abigail Thorn in Baldur's Gate 4. Not specifically adding strength penalties to women and getting rid of black characters. (Though the AI Art will probably default white a -lot-.)
But hiring Lanasa to put him in charge? Musk is a fool convinced of his own genius, but he's still a greedy piece of excrement. He still wants to make money. If anyone gets put into a position of authority over D&D by Musk it's going to be someone who with ruthlessly "Trim the Fat" and work people to death in order to make Musk's bottom line look fatter.
Not someone with an ideological axe to grind and 0 experience being more than an online nuisance.
Expect fewer products with more AI and the most milquetoast fantasy available being presented as avant garde or special because of the double Ds on the cover.
But the vast majority of people just won't give a damn, buy it anyway, ignore half the rules, and keep playing D&D exactly the same way they have for the past 50 years. You'll get a bunch of Muskrats screaming and hooting and hollering on Twitter that it's the best version of D&D there's ever been, but most people will ignore them because it's just more D&D24.
Because unlike your Twitter feed, Musk can't put Nazis at your game table.
