DirectX 11 allows textures up to 16k but is Unity limited to 4k?

Is there a way to enable 16k textures in Unity in DX11 mode?

I guess you could write your own shader like here:http://www.41post.com/4416/programming/unity3d-using-textures-larger-than-4096x4096 But its really more of a workaround rather than a permanent solution and does not take advantage of the 16K limit. Would be really nice hint hint… if a dev were to work on this