In terms of the map and how sometimes the game could turn into a running simulator, you could add weather effects that are harmful to the monster or both the hunter and the monster that closes of a section of the map if the Intensity lv has dropped too much (intensity lv would drastically increase at stage 2 because its probaby ok for the monster to run at least at stage 1, but fights should happen at stage 2)
could also bring back the tracking trapjaws, if the monster isn’t quiet enough when it walks by a trapjaw nest/cave/territory it aggravates them, and after a certain amount of time passes they will start running towards the monster and just take its next kill. If the Hunters see them they can follow them.
Weather effects could include hail storms, poison fog, forest wild fires, a horde of aggressive wildlife, floods…ect
this would close off and area to the Monster and decrease the amount of space to run which increases the chance of an encounter.
I think you should bring the parachute camera ammo back, you could make it a switch able tool for the hunters between a smaller radius planet scanner and parachute cameras