Idea for gameplay or expansion

I Think that's a really cool idea considering I was just playing the decades challenge! However I don't think they would add all of it considering it would probably take a massive amount of effort. They could add a pack like back to the future in sims 3 but instead you can go either forward or back in time and your could live in those worlds. They would probably group the decades up like 1800s, 1900s so on instead. I would like to see some kind of progression where you unlock items overtime too.