Also, obvious wish list for future MH: make the world seamless.
I think that MH4's traversal is their step towards that. The game flow is still based around monsters moving between small individual arenas, and I'd still rather have short loadtimes than have to run along some long arbitrary path to get between those areas. But if the areas are seperated by the terrain and area changes were caused by 'Diablos charged right through that fucking wall', 'Congalala climbed a huge tree' or 'Tigrex ran up that rock face' and you follow them accordingly with no loadtimes to break up the action that'd be awesome.
In my opinion the one HUGE flaw in this game is how freakin BRIGHT the caves are. Theres zero need to carry torches around now which severely impacts the Gigginox hunt and, in some cases, the Barioth one.
Yeah of the small lists of 'steps back from Tri' I hate this one as much as the water texture. The whole point of Barioth's eyes lighting up in ragemode was how scary he was in the dark! It was his thing, like Narga's red trails.