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From what I saw today the loco wasn't derailed (or had been rerailed) and the container wagons were derailed and sat on the trap points on the branch to the docks. There were a few police cars scattered around and the line seems to be pilot worked from Dalton Junction to Barrow station.
Cumbria coast line/Furness line - Trains will run later between Millom and Whitehaven due to the elimination of a few signalboxes, and there will be no TPE service from Barrow.
There is an official National rail enquiries one that is quite good, can't book tickets with it though. If you want to book tickets tpe/virgin/xc all have free apps, plus i'm sure others do too.