I dunno, but I don't see it working very well. TikTok's popularity has a strong network effect: you're using it because your friends are using it. You share with them, remix videos for them, you all share in the social zeitgeist together. With Americans mostly excluded, it will become a foreign-feeling place when a few look at it through a VPN.
A lot of videos will be shared through other means (Instagram, YouTube, etc.) Maybe one of those will be the new beneficiary of the network effect.