Never heard of such thing (I believe you're talking about PT session templates, not plugin presets). The reason why this doesn't exist I think is because everyone has got a different way of laying down their tracks, aux, fx, etc...
As far as routing goes, I have made an MS routing template that I'd be happy to share you if you want. It's just a basic MS matrix decoder using the standard PT plugins that I use in Mastering.
It is available here:
www.se.audio/free-downloads/mastering