Hello, this is a video by RMTransit about a cool proposal by the Effective Transit Alliance. It’s about a through-running regional rail system. Here’s the link from the description to the entire proposal: https://www.etany.org/modernizing-new-york-commuter-rail
While I hope that would happen in future, the sad fact of the matter is that it would require substantial interpretability between three commuter rail systems run by two states.
Worse is that the bistate agency with a purpose to deal with regional transportation would require significant reform to be the kind of agency to be entrusted with this.
That’s what I was hinting at in my other comments. The way that commuter rail in the NYC region is managed would be the first thing that needs to change.