You mean like this http://monsterhunter.wikia.com/wiki/Monster_Hunter:_World and about 90% of hunts are about 50-60 mins, only investigations have different times like 15 mins, 20, 30, etc.

No, I mean like statistics that could show as an extra page on a monster's page in the Hunter's guide that says the average hunt (I.e average hunt time by the player/server) what the monster's average HP is (via damage done) average damage (damage done to players) and the drop rates for items

I doub that would be possible at this time.

probably, but one can dream