Steem/steemit is not dead (just zombie!), it will continue to exist and content creators will continue to create content for it, even though some of them might leave. It might even grow and attract a lot of users under the control of justin sun (unlikely, but possible). However the semblance of decentralization that was here while working our way towards real decentralization is now completely shattered, and this platform is nothing more than a centrally-controlled reddit clone.
See the outages on the site from the past few days? That's a direct consequence of the takeover...