Berlin-Warszawa with Flixtrain

Flixtrain has two paths a day each way between Berlin and Warszawa from December 2025 - outlined here. The problem is it needs carriages that can accept 3kV dc current head end power, and at the moment it does not have any of those in its fleet. Until it either leases or buys some I cannot believe this will happen. It would not be hard to do, but I do not believe it yet.