You can still buy record players. Records have been around since the 1890s and are still here over 100 years later. The thirst for physical media wont die. There will always be a niche for physical film media and devices will be made for this need too play them on. The human need for touch and physicality to things will become a stronger niche in a world where it begins to disappear and thus a resurgence with physical film media much like vinyl with music will periodically recur.
We've pretty much peaked with visual fidelity. Unless you have a huge screen you can't appreciate 4k. So every change from here is negligible. Bluray is peak visual fidelity unless you have a 50 " + tv
You can get scart adaptors Hdmi to scart adaptor amazon
Indeed. Plus another thing to bear in mind is that you might well have a VHS player and a few VHS films, but would you really want to watch them? The latest UHD films might look great today, but how will they look in 20 years? DVDs used to look perfect and at the time I couldn't imagine anything better - now I try to avoid them. It doesn't matter what you buy, everything becomes obsolete in the end.
You’ve kinda touched on something there about the players, I’ve still got the odd VHS film in the cupboard, I’ve still got a VHS player but I can’t use them as my latest TV doesn’t have a scart input. Granted it’s not quite the same when talking about DVD,Blu-ray & 4K Blu-ray but it does prove a point to a degree though that physical doesn’t always mean forever.