SMT will sure make steemit use cases increase. Just like musing is helping those that have questions and those that can answer them, find a place to interact and get paid interacting (getting a solution or providing one).
Because of SMT more platforms will be built with use cases for set individuals.
Presently some steemians love spending their time on musing, others prefer hunting for product on steemhunt. As the SMT dream comes true, more and more dapps will bring more and more users onboarding the Steem blockchain. Now if this sound like mass adaptation, then the answer to your question is YES.