I'd expect the hype and growth around TikTok to peak once their parent company IPOs, as more corporations, advertisers, mainstream media accounts, move in to the platform to ruin it just like they did with the rest of the other social networking platforms, especially for YouTube and Instagram.
If they don't IPO soon, TikTok will get much worse for their users. Either way, the users will eventually get annoyed by TikTok's changes, pushed and boosted by the company.