Forum member Decepticonmark lets us know about some
eBay auctions for what appears to be some kind of 3.75" Marvel Universe Deadpool Corps boxset.
It's by no means been confirmed these will actually be released by Hasbro and if they are we can only speculate as to how. Possibly a San Diego Comic Con Exclusive.
Shown below are images for
Lady Deadpool, Dogpool, Kid Deadpool and
Championpool. The only member not shown is
Headpool which would likely just be a pack-in since all he is, is a disembodied head.
If this is in fact a 2013 San Diego Comic Con exclusive, then we should be hearing something official from Hasbro about it in the coming weeks.