If an extinct track system would ever be re-issued, why not the K-Line Super-Snap? It looks very similar to Super-O, but unlike Super-O, all O-gauge trains, from tinplate to modern, will run on it--even the switches. We had a pile of Super-O straight track many years ago, and the only thing it was good for was shelf track. Tinplate trains won't run on Super-O as the rail profile is too low. The tooling for the Super-Snap track must be around somewhere, all it would take is someone willing to produce it.
John
