The constitutional convention vote is required to happen every ten years, and will likely fail, since it failed by a mile last time and I know of nobody that is campaigning for or against it.

Even if it passed, any proposed changes would have to be approved by 2 thirds more of the New Hampshire voters.

On the other constitutional question, the Register of Probate constitutional question eliminates an elected office that no longer has any duties or powers - all those duties have been transferred to different state agencies.