I actually think the opposite is going to happen. He's already said he wants Twitter to be the most prolific site for advertisers saying that he thinks advertising can "delight, entertain, and inform you."
If he introduces a subscription model TikTok will pull ahead and take over the entire social media space.
No it won't. A lot of people simply aren't interested in short form video.
I think there will be another app that is half way between Twitter and LinkedIn.
https://www.pymnts.com/news/investment-tracker/2022/musks-pi...
On the other hand YouTube shorts can already technically do most things TikTok can, and handles copyright okay (from the pov of the big copyright holders) and has licenses for a lot of music and stuff and created an ad model making it much more interesting for people to create shorts then TikToks and allows using shorts as a way to get someone hooked for longer videos. And there are GeoPolitical reasons why regulators might want to push YouTube over TikTok e.g. by how they create regulations.
So there is a realistic chance that in the next 1 or two years YouTube Shorts will eat up TikTok due to better quality Shorts for the user and better monetization/money making chances for the creators.
That’s why I said there’s a lot they have to work out. They don’t want to fall into a model like Instagram where the bulk of ad revenues go to the largest influencers. But I would not be surprised to see them rework their payout scheme to something more predictable like YouTubes. The “big pot of money, split evenly” was a simple way to start but now is getting stretched.
One thing I find interesting about TikTok is they have one of the best, completely in App, ways of targeting users. The short format videos allows them to assemble a ton of data points very quickly on user interests and more and more product and recommendation searches are being done on their platform.
I could be wrong but I don’t see YouTube shorts catching up anytime soon TikTok has too much of the social Zeitgest going their way and it’s far easier for new creators to get noticed there as well.
TikTok is not taking over the entire social media space any time soon.