Ah, I actually took that exact same train years ago. I did an Erasmus exchange when I was in uni, and I studied half a year in Milan. Visited Switzerland by train back then as well, scenic ride!
Looks like Canada is taking a thought-through approach. I hope when it all settles down again, I can add this destination to my go-to list. It's been a dream for quite a while, but somehow life has always randomly directed me into other paths. It's time!