There is no way TikTok will be sold - China won't allow it, and it's also technically likely nigh on impossible to just sell the "American" portion of it.
TikTok is a multinational success and highly profitable, so ByteDance aren't going to sell it just to keep it going in the US for the benefit of Americans. They of course don't want to shut it down as it's hugely financially successful in the US, but a ban is the lesser evil for the company.
But it's all nonsense anyway - Trump wants to "do a deal" over this; I doubt he'll get anything meaningful from China but he will blowhard about some bullshit to save face and TikTok will continue, even if there is a short ban before his inauguration.