Marvel teaser #4 asks "Are We...?" continuing with a series of questions that surround something coming out in December.
More than likely these are related to Matt Fractions new Inuman series and event with "Inhumanity."
Marvel stated as a result of what goes down during Infinity, the terrigen mists spread throughout Earth giving people inhuman powers of their own.
The questions seem to fit.
We'll have to wait a couple weeks for definite answers as Marvel looks to be announcing what the deal is either Tuesday the 17th or Wednesday the 18th.