Twitter is old enough to alienate users if non trivial changes are made, but it has also not gone anywhere for years in terms of product development. I'm curious about Musk's plan to escape that complicated vicious cycle. I wouldn't be surprised if the first phase involves firing a bunch of quiet quitters and people who add no value to the business.

From an engineering point of view I can think of a few things I would like to play with if I worked for Twitter, Elixir Liveview being one of them. There is a lot of nice tech that would suit Twitter 2.0 and simply didn't exist at old Twitter's peak.