The student is moving to New Jersey, not Colorado.
I live in CT. No open choice here for high school at all.
Some public high schools will take tuition paying students in states where open choice isn’t an option. Student applies and then if accepted pays tuition to attend. Student would need to provide their own transportation.
I guess my question to the OP…why is your family moving to Newark?
And I’ll echo what someone else said…attending some particular high school is NOT a ticket for acceptance to elite colleges where the acceptance rate is in single digits anyway.