What will the next DS/3DS be like?

I actually don't like the 3D at all. It just hurts my eyes. I think the next DS is probably just going to have a better resolution, new type of cartridge, maybe even no cartridge...

I honestly don't know how they could make the thing much better.

 

I hope that they will include a GBA slot.

 

I'm sorry to shoot this down, but GBA is so old that there's a guarantee on that not returning. However, I could see the next DS having better screen resolution, as others of said, and having something that works almost like the 3DS store thing... Instead of going out to buy games in little cartridges they would just work like apps. You'd go on the store, which would be an app on your DS, then you'd search up whatever game you want to buy. There could be a category for new releases, popular, recommendations, and so forth.