I suspect the deal will still go through, but I wouldn’t be surprised if the price is a smidge lower than the initial offer.
As an aside, I receive significantly more interaction on Mastodon than I do on Twitter. And that’s with only about 60% of the followers. I’m sure that my experience isn’t representative of Twitter as a whole, but it seems like there are a lot of dormant accounts or accounts that don’t interact with the tweets in their timeline.
That’s not to say they’re a bunch of bot accounts, but of the monthly active users in my circle on Twitter, a good number of them don’t seem to be active at all.