Great analysis @exyle, very reasonable and probably will come true.
One thing that concerns me about STEEM is the globalization process. To achieve it's purpouse, steemit has to find a way to move tokens to other languages communities. I say that because as it is today, writing a non-english post is not productive if you plan to maximaze your efforts since non-english speakers do not have enougth SP to "give" a decent reward. On the other hand, having only english posts is a entry barrier for many people around the world.
Let's see what happens.