Steamboat Willie, the first Mickey Mouse cartoon, will become public domain in literally 13 days.
Only because it’s not as important for them to keep it, they make a lot of money from other properties
No, they can’t extend any further. The copyright has a hard expiration at the end of 2023.
I remember thinking that in 1998 too. It is too late to extend copyright for Steamboat Willie before it expires but that does not mean that corps like Disney won be fighting tooth and nail to extend it again in a few years when things they actually care about are expiring.