I hope not. I know Capcom said they don't plan on stopping physical media, so that means something for future console manufacturers to continue supporting physical media.
It isn't. In fact Sony are increases their both phycical games and Phycical production's. Same goes also with phycical media as a hole it isn't dying at all in fact it is growing.
Interesting that you and your wife keep your collections separate since ive never seen a married couple do that. I get it though, sometimes you want to keep interests separate even if it is in the same category.
She never got to have a collection of her own when she was growing up. It's just something she wanted, but just with her Playstation games. Our Switch games are combined, as are our DS and 3DS.