Their excuse is that while is possible to keep stable 30fps at 720p it will take a lot of effort from them to accomplish it(maybe by using wii u specific features like fixed functionality), if thats the case then there are easier ways to accomplish the goal without so much effort
Use SMAA isntead of MSAA or EQAA
1.-If THEY by chance are using MSAA or maybe EQAA like the ps4 and xbox one, they can replace it with SMAA which gives similar results to MSAA with less strain improving performance and doesnt blur as much as FXAA and can be used as a post-processing antialaising solutionhttp://www.tweakguid.../Crysis3_6.html
Try Occlussion Culling and maybe Frustrum too
2.-Occlusion Culling is a feature that disables rendering of objects when they are not currently seen by the camera because they are obscured by other objects. This does not happen automatically in 3D computer graphics since most of the time objects farthest away from the camera are drawn first and closer objects are drawn over the top of them (this is called “overdraw”). Occlusion Culling is different from Frustum Culling. Frustum Culling only disables the renderers for objects that are outside the camera’s viewing area but does not disable anything hidden from view by overdraw. Note that when you use Occlusion Culling you will still benefit from Frustum Culling.
http://docs.unity3d....ionCulling.html
http://http.develope...ugems_ch29.html
3.-Some adjustments on the LOD(level of detail) for renders that are far away is also an option.
Try out a variable framebuffer so that resolution will change instead of the framerate (Wipe Out HD did this)
4.-Another approach is to use a variable resolution/framebuffer so that resolution will change isntead of the framerate during the gameplay, this way whenever there would be fps peaks the resolution will change isntead. This trick was used in Wipe Out HD for the ps3 tokeep the 60fps at variable 1080p(resolution could go as low as 1440×1080 certain times) and tricked many as is not very noticeable in race gameshttp://www.eurogamer...sleight-of-hand