For me, DLC is a sad trend in gaming. It goes hand-in-hand with download-only games. In the future, most of this content will be unavailable as far as console gaming goes. I've never worried that a favorite PC game would become unplayable. Because the internet isn't strictly controlled by one party as the PlayStation store or Microsoft store is, updates, patches, add-ons and mods have found homes in archives that you can access easily. To this day, I can load up Wolfenstein 3D or Leisure Suit Larry or whatever oldie I want.
We've seen it time & time again already. Right now, Nintendo is shutting down access to the titles on the Wii U and 3DS. If you dont already have these games downloaded, you'll probably never see them again.
Modern games with "season passes" and other add-ons face a similar fate. Unless they get a "game of the year" or "complete edition" physical release down the road, you may never again be able to play what in n reality is the FINISHED PRODUCT.
Even Nintendo who has been the most stubborn is starting to do more and more DLC. Breath of the Wild has an expansion. When they move on to their next system, will access to this content be lost to us? What about the upcoming fighters in Super Smash Bros Ultimate?
As a collector, video game enthusiast, fan and consumer - I WANT access to these games in the future! But sadly, starting with the PS360 era to an extent and now nearly every current gen PlayStation and Xbox title (as well as some switch titles), gaming is becoming a service where the games of today will be tossed aside like so much trash for the next "it" titles. Forgotten & unplayable. Retail discs full of broken, buggy & in complete games all but unplayable without their mandatory day-one patches.