While I think it's likely they will keep the site up and running, I doubt there's going to be capacity for much forward development while they adjust to the reduced headcount.
For most people basically the same, a few more people who are banned or would be banned will be here but it won’t make a huge difference in people’s experience
For me personally, noticeably worse, since a large part of the infosec / vulnerability research / exploit development community is leaving Twitter
In general, it will be a lot more fragmented