Sand trains are unlikely, but I would say never say never. Just a few years ago, I remember seeing people post rumors on the old "CR on the Southern Secondary" thread about C&D/DRRR taking over and re-establishing the connection from Farmingdale to Freehold. I remember lots of back and forth about how that was absurd and was a fantasy and would never happen, but sure enough, here we are watching C&D/DRRR pull onto the Southern from the FIT-SOUS connection that was abandoned for decades until this year.