Ann: MAp Entitlement Offer , page-3

A quick read implies MCG have first dibbs on any excess:

"Macquarie Capital Group Limited (ABN 54 096 705 190) (including via wholly-owned
entities) (Macquarie) has committed to support the Offer by taking up its full pro rata
entitlement and, to the extent that there is any shortfall, by participating in the shortfall on
the same basis as other eligible MAp security holders, provided that following the Offer
Macquarie's voting power will not be more than 3 percentage points higher than its
voting power 6 months before the allotment under the Offer"

Given they don't really need to do the cap raising, I wouldn't hold much hope of getting any excess.
PT