increased Riverline service due to NEC outage

Given that the NEC will be out a few days or so, what room is there for the Riverline to add service between Trenton and Camden to help out the normal SEPTA Trenton-Philly riders?
Can they run more frequent service, or are they limited by sidings for meets and/or lack of cars? Can they add more cars to trains, or does platform length and car availability limit it? JS
I imagine they were in overflow mode today.

I don't think you will see much more than what currently happens. The crews follow FRA HoS & still need their rest. The news said they were going to run more 2-car sets though.

I don't think the physical plant can handle additional trains in rush hour at this time.

Correct--the number and location of sidings permit a 15-minute headway, but that's it.