I saw the figures but no Stay Puft at Suncoast a few weeks ago.
It sounds like Mattel is set to launch an all-new Ghostbusters line of toys, exclusive to MattyCollector.com. I have seen them mention debuting an "all-new line" at NYCC, and this may be it. More info at the linky, but it sounds like it will start with 12" figures, complete with actual actor likenesses, launching in June. There is also mention of a 6" line a little later on, with that being shown first at SDCC.