No, because no matter what you do to 3-rail track, it will still be 3-rail track--even with N or HO scale center rail or a blade for center rail. I struggled with this issue for several years before deciding to go to 2-rail for appearance reasons, but 2-rail has its own set of issues (larger required curves, lack of availability of equipment, time involved to convert equipment, etc.).
I was close to going with MTH ScaleTrax, but I could not get past the fact that the ties are not correctly spaced. Other 3-rail track systems are also a compromise: Ross and Gargraves have rail and ties that are too big; Atlas has rail that is too big; other 3-rail track systems (K-Line, Lionel T-rail, Lionel Super O) are harder to find and are also too big; stud rail, if I recall, has issues with switches since the studs have to increase in height to get the slider over the outside rail.
If there was a new 3-rail track system, I think these attributes would be necessary: 1. Code 172 solid rail (big, but not Atlas/Ross/Gargraves code 215 big, yet big enough for most 3-rail flanges); 2. correctly sized and spaced ties; 3. less obtrusive center rail (blade or smaller rail); 4. reliable switches offered in many sizes; and 5. durable.
