Maybe not yet, but as someone who lived through the annoying breakup of the telecom monopoly in Norway I'd never ever go back.
I guess this will be the same.
In 1998 I remember having to dial 1521 or something before the number I was planning to dial to use the cheaper minutes with the competitor. I also remember having to learn to use 8 digit numbers for everyone instead of using 5 digit numbers locally.
Annoying, but forgotten 4 years later when you didn't have to prefix numbers anymore and we got cell phones with contact lists.
Same will happen with rail I guess. Annoying today, but I guess 4 years from now no one on their right mind will ever want to go back.
Oh, BTW, the same with the mail monopoly. A lot of complaints, but the result is I can now get my packages shipped overnight. I literally contacted my broadband provider on chat a Sunday afternoon during the last 30 days and had a new modem in my mail as I woke up the next morning.
No way that could have happened with the old telecom and mail monopolies in place.