They wont be able to go back to their childhood programs because they wont exist any more, so nostalgia computing wont be a thing for them even if they wanted it.
Computer nostalgia is neat for a little while and emulation is making it easier than ever.
As for the next generation - They won't go back to what we had but move forwards onto something completely different and new. Hopefully we will understand it, or just be the old folks yelling at clouds and children about how the world has changed!
*Big-eyed wide-mouth filter face pulls up, 10s of Top10 song in the background* Hey guys! *5 seconds of grimaces* Today we lick toilet seats and find out whether you can drink pee (doesn't actually do it). Please download Raid: Shadow Legends Infinite *10 cuts in 5 seconds* Please like and follow and leave a comment below if you would drink pee.
I'm thinking a bit more broadly than that. It'll be about real-flesh experiences, learning physical musical instruments and playing with others, experiencing real physical peril, a thorough rejection of transhumanist ideals; essentially a reiteration of the Romantic movement which led to things after the Industrial revolution like the Kibbo Kift: By their very nature, things which can't be ingested by an AI and monetised.
Of course, after that you'll have a synthesis of the two ideas emerging. That's too many steps ahead for me to predict, but there are passages from Iain M. Banks' Culture books which might be on the money.