On general principal, my goal for high res photography would be to push sensor resolution beyond what I want and what is delivered to the sensor by the rest of the "image forming chain", meaning everything from subject motion through atmospheric effects and on to abberations and diffraction. And in that strategy, the best a to get both high true resolution (not just aliasing enhanced "accutance") and freedom from aliasing artifacts is to push sensor resolution high enough ("over sampling") that the OLPF filter still leaves you all the useful and desired resolution.
And 36MP might be close! Or look at it this way: the D800 is probably as sharp as with about 30MP and no OLPF filter, so well ahead of any previous Nikon or Canon DSLR even with OLPF removed, and into the territory where many MF users in this forum have said is enough resolution.
P.S. has anyone in the digital audio field advocated removing the LPF in A/D conversion, complaining about he loss of high frequency response cause by the LPF? Maybe that would happen if audio had the equivalent of 100% pixel peeping, which would be playing music back at half speed or less, and then complaining about the muddy highs caused by the LPF.