We are at the stage where nothing is enough for either fps or resolution. I use a vive original and its painfully blurry and thats 1080p per eye and a very low fov. For a high fov lens we will probably need 16k per eye at 144hz before people will consider it good enough like 4k for monitors is now. We don't even have the cables to push that much data currently, let alone render it.

I expect to reach this we will probably have to start using foverted rendering.