I really want this as well, but I'm a bit sceptical: would any company release a product soooo good so that their users don't need to buy new models of such product for many years?
I still have a 2015 MBP that works like the first day although I would like to increase the disk and ram. 5 years with the same model; that's a lot. I know many people who replaces their laptops every 2 or 3 years. Now, I have the impression that a model like the one you just described, is a model that could easily "last" for more than 5 years without trouble. Wouldn't that hurt Apple's sales long-term?
Every person that I know with a Mac or an iPhone still has it and it's usable for years after they're done with it. I know some people that are still using their iPhone 6S because it has a headphone jack and that phone is almost 7 years old at this point.
I'm hoping this years gen will be like that 2015 model. But I share your concerns, knowing Apple they will gimp it somewhere like not allowing 2 monitors or limiting to 16GB then have next years model have it which will prob increase sales by a ton long term.
That’s almost 9 years on one machine and I didn’t have to switch; I just wanted to dabble in the latest iOS dev on Big Sur (which is unsupported on the 2012 model)