So far, no matter how exciting and intriguing, it's just click bait.
But IF they have documentary proof that Ted's mom and dad were both Canadian citizens at the time of his birth in Canada, Cruz would not even be a US Citizen without naturalization...and CERTAINLY would not be "Natural Born".
Remains to be seen.
But if they do and they reveal it and it is authentic, what will happen as a result?
Except that it wouldn't have been possible. Canadian law required that a person had to have lived in Canada for 5 years before they could even apply to be a citizen. His parents moved to Canada in 1967 - Ted was born in 1970. To all but the math-challenged birthers, that eliminates the possibility that they were Canadian citizens at the time he was born.