We seem no less shocked now by social changes and technological developments and no less convinced that everything major under the sun has been done and only tweaks and refinements remain than people of past eras did.
I do expect the future to be different.
I could imagine a future where people see illegalizing LSD as strange as illegalizing homosexuality.
I can imagine that Google's rent an AI car service will completely remove personal ownership of cars in a few decades. This removes cars as status symbols with means that they will be built on other design criteria like energy efficiency.
I can imagine a constructed language possibly overtaking English.
There are a lot of other things that are more vague.
illegalizing LSD
Drug prohibition laws introduced in the 20th century are a nice counterexample to reactionaries' claim that Cthulhu only swims left, BTW.
(Edited to replace “always” with “only” -- I misremembered that quote.)
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.