According to the Boston Globe, as quoted in the politicalwire blog, Senator Elizabeth Warren made a definitive (again) Shermanesque statement that she is not running for President in 2016:
"There is no wiggle room. I am not running for President. No means no."
I doubt that Senator Warren's clear and unambiguous statement will be sufficient for some on this site who keep pushing her candidacy, but in the real world, we can put a fork in it - she is not and will not run for President in 2016.