Well, I believe that Stern will never die, what if he is at risk is Steemit (the platform).
And I think that for now both will exist, the problem with this is that it will cause a division, as happened with Weku, that many people went there and ended up being less active. But Steemit is different, because steem has been on the exchanges for many years and really if I disappeared steemit.com, other sites like steempeak.com, busy.org, etc; they will continue to work with steem, so this means that we can continue to generate our content using any of those portals; And I think that is what is going to keep the community alive.