You don’t think that Apple has Proto types of all those things? The foldable iPhone has been worked on for years, and they haven’t released it yet. Maybe because, much like the rest of the industry, they’ve realize that foldable phones are not exactly a very good market to go into at this very moment? Look at the galaxy fold, the thing was a huge failure, that was overpriced and not durable at all.
Maybe Apple would go into the foldable market, when it’s mature and ready for their product.
As for a foldable iPad, that exists. It’s called the MacBook. Or an iPad Pro with magic keyboard.
A redesigned iMac is supposed to be coming out later this year.
And as for AR glasses... have you been on the Internet? These things are in development, and Apple has been dumping tons and tons of money into AR advances. Just cause it doesn’t come out when you say it should, doesn’t mean that it’s not being worked on.
The iPad began development around 2003-2004, and wasn’t released until 2010.