[quote=yourbigpalal83 post_id=5009578 time=1780789897 user_id=4797]All this is is a re paint with new “Mini” Ghosts.
[/quote]
It isn’t a straight repaint. In addition to the new head sculpts for the ghostly versions of the Ghostbusters, the figures come with human alternate heads (which include removable neck sections that aren’t present on the previously-release figures).
As more media is being uploaded from the Ghostbusters Day events, I came across an unveiling video from the YHSP event:
As I suspect it may’ve been lost amid the reaction to the ghost clone figures, one of the three ghost accessories is Slug, from Ghosts ‘R’ Us, suggesting Snarg and Zonk will likely feature in a future unrevealed release. 
Also, did I hear right that the four-pack would be an SDCC exclusive?