Cars.com as business (valued at $2.5 billion) was sold where the valuation of the domain itself was reported as $872 million. If we ever get to see bitcoin dot com get sold, it will be done through a similar construction, because if you sell just the domain without a working business it's worth waaaay less.

I don't think any entity within crypto has the capital needed to acquire this domain including the businesses, unless they throw in shares of their own company to tempt Roger to sell it. If we get to witness a takeover, it will probably be an institution or large social media platform. I rather see Roger keep it in his portfolio than for example Facebook or Google.