A “freeze card except for mobile wallet payments” option would be the most use for me.
It would be a great feature for if you’d lost your card and think you might know where it is, but you also need to make a payment.
Would give great peace of mind knowning I can still use Apple/Google Pay without worrying that my card might have been stolen instead of lost.
I also know a few people who really hate contactless (they think it makes spending too easy for them). They’d love to be able to disable it.