I think your right on that. My prediction is that in two years time we won't be using steemit as a site at all. It's not very functional for requirements and with the release of so many new dapps it can be seen as a bit spammy from the auto posts.
I think that as the userbase grows and the value of STEEM increases people will be linking to the blockchain through their dapps of choice. The likes of actifit allows people to be rewarded for exercise which will have it's own community that wont need to log into steemit at all, just post through the app. I'm using partiko a lot lately as it is very fast and clear for commenting and replying to others. Steempeak has a much better interface for users and allows you to filter content a bit better. As all of these develop and have their own communities of users people will migrate away from there to the application that suits their needs the best while still getting rewarded for use through STEEM or SMT's.