smart contracts (bitcoin prospective) are not smart. or if they are they are not used properly to maximum effect

they are just glorified multisig where it diminishes someone sole custody to be cooperative custody

yes its one step forward and moves a bit away from full centralised custodian and atleast gives some % control back to the depositor. but its yet to actually be a "next craze" event

..
i would say after a wave of craze over "virtual land/property real estate"
the next wave after that would or could be proof of ID

followed by things like reputation/credit rating.. and education credential stuff