Originally Posted by
JJeffrey
Yes, you would not be forced to take the same flight in a lower cabin. In most cases like this it would be up to the pax on whether they want to get there sooner (in a downgraded cabin) or take a longer routing or wait until the next day to go in their ticketed cabin.
there is no evidence that waiting until the next day would get them a seat in their original cabin. In the past few years when a J seat cancelled most people I talked to were offered something 2-3 days later.