I can actually see this happen! I've been thinking about it myself for quite some time. The only problem I see is the actual sizes of these "cartridges"; how many GB can they have and still be affordable? Does anyone know? I'd like to see at the very least 32GB cards. Like someone already pointed out, Xenoblade X is 20GB - so we would need bigger cartridges than that.
And like Cobretti2 and Bofferbrauer already pointed out; it would be supper cool to have additional space on the cartridges to have your save files AND additional DLC! How else are savings DLC's going to work with a unified system with two different devices?
Everyone seems to think this solution would push 3rd parties even further away from Nintendo, but I'm not too sure about that. While the Fusion consoles wouldn't be as powerful as PS5 or XB2 you'd be selling your games on two devices at the same time for the price of one! This will probably entice Japanese developers especially, since home consoles are king in the West while Handhelds rule in the East; they'll make a HH game and be able to sell it on a home console in the West, thus opening up their game for a bigger market! That is IF Nintendo do away with region locking of course. And the same goes for Western publishers as well; make a home console game in the West but cater to the handheld market in Japan at the same time.
This COULD be a great way for Nintendo to regain some 3rd party support actually!
I'm on Twitter @DanneSandin!
Furthermore, I think VGChartz should add a "Like"-button.
