What I want to see is both fighters are using their own style(i.e Mcgregor using MMA and Pacquiao using Boxing) and not restricted by a rule of what fighting style should be used.
If there is no restriction then you can call that an MMA fight and i highly doubt that any boxer who found financial success in boxing will ever try MMA as anyone can take them to the ground and finish the fight easily and that happens if there are no restrictions as the fight can happen anywhere 
.BTC0.005 - for me, this fight will not happen this year. Any takers? Anyone? There are talks according to McGregor itself so there's a chance for a match. And a long period for negotiations so this is a risk for me.
I can bet that the fight will never happen and i can spare 0.001BTC for that .