I'm convinced it's liberal media hype - repeat it enough and it's believed and repeated again.
However, I believe she would not accept the VP role in 2016 if it was offered. Her family is very important to her. She is the primary caregiver to an older developmentally-disabled sister with the mentality of a five-year old. She has taken care of the lady with the help of others, but is never far from her. I think her role, after she serves a second term as governor, will be to offer her opinion on Hispanic issues to the party, help in fundraising and support of candidates who agree with her moderately conservative views.