I'm not sure Ms has been completely straight up about what we are getting this fall. When they promised us Halo for the Xbox one at 60fps I think they are actually giving us Halo 2 anniversary. As far as a Halo 5 goes I think they are going to use it as a platform to push tiled resources and show what the hardware is capable of when used properly. As far as not being able to add features to the Halo 4 engine when running at 1080p 60 fps. I have no dev knowledge and Im positive that Laa-Yosh knows what he is talking about but, thats a little hard to swallow for me. With the X1 having all that memory and 16 times the shader cores of the 360 and 2x the rops I would think they would be able to add some features to the engine. I agree that 343 using dynamic res would be the way to go if they are shooting for 60 fps.
I hate dynamic res. Not really recalled any games of it, but just the very idea bothers me. Rather they cut back graphically if it comes to that.
They said 60 FPS but they havent said the res have they? Maybe 900P could be a good compromise.
The way that ad Cyan posted reads, tells me I'm glad 343 appears to still be a graphics envelope pushing studio, and that's good to hear. MS needs at least one.
About not adding features, well it's all crudest back of the envelope stuff from a layperson, but they should have graphical resources left over. X1 should have 5-6 the GPU flops of 360 (depending whether you rate Xenos at 240 or 200, I think some here have posted the latter is actually correct). But that's not accounting for a likely huge gain in efficiency achieved over 8 years of GPU development in the interim. We see what the Wii U is doing keeping up with 360/PS3 with just (apparently) 160 shaders, from a GPU still several years older than what is X1. Pegging that efficiency gain exactly is likely impossible, but I feel safe to say X1 has at least 10X more GPU than 360.
If that's the case and you give up 2X GPU resources vs Halo 4 for 60 FPS and ~2X for 1080P, you're still left with 2.5X remaining.
Which granted, 2.5X may be in an area of diminishing returns, Xbox was probably 2X as powerful as PS2 without really necessarily showing a generational leap. But it's still 2.5X.
All in theory. In real terms I expect Halo 5 to look a whole lot better than 4.