They haven't been clear but looks like the basis will be:
Giants - Pick 1
North - Picks 2 and 3 and Ports F1
West Coast - Picks 8 and 12
Port - JHF and Rioli
Article I read said a number of other pick swaps. Reckon some future picks from North will head to West Coast and possibly Pick 33 from Port.
I'm thinking something like
Giants - Pick 1
North Picks 2 and 3 and Ports F1
West Coast - Picks 8, 12 33 and Norths F2
Port - JHF and Rioli
Might be some minor adjustments too, but seems like that it likely to be the jist of it
West Coast should be pretty happy with that, likely walk away with Busslinger and Hewett.
Giants will take Cadman if this happens
North probably take Wardlaw and Sheezel