Okay, this can't possibly be a spoiler for anyone at this point, can it?
I mean, if you've surfed the web and are a "geek" or collector then you had to have come across either the info (rumor?) that Ant-Man will be growing into Giant-Man in the upcoming Captain America: Civil War movie.
I guess that Hasbro has decided it's not much of a spoiler at this point either because, after trying to hide this figure as the BAF for the Cap wave of Marvel Legends, they finally released an official image of him.
I think it's a cool idea for a build-a-figure, but he's no where near big enough to truly be Giant-Man. I've seen some comparison pics of him standing next to standard Marvel Legends figures and he looks to be 10" at best.