It seems that every other new forum member wants to propose a next generation enhanced Arduboy. As soon as you add colour, larger screen dimensions and more resources, you’re moving into a territory already covered by other offerings. @bateske has recently indicated that he isn’t interested in further Arduboy development.
Rather than re-invent the wheel you might as well just jump on the bandwagon of an existing offering, such as Pokitto, Gamebuino Meta or ESPboy.
Many people, myself included, feel that one of the major reasons for the Arduboy’s success is that its simplicity, limitations, and well established and uncomplicated development environment make it easy for aspiring new programmers to get started writing games. And those games can be such that they don’t appear as an “embarrassment” compared to even well polished games created by experienced developers.
As I’ve repeatedly said, I feel that if there were to be a “next generation” Arduboy, it should use the exact same display, case, battery and other peripherals, with only the microcontroller changed. The main goal for changing the microcontroller is to provide more program and RAM space, since these limitations can lead more to frustration than their value as learning to squeeze things provides. I’m not opposed to adding other enhancements, such as an SD card slot, as long as the same case (with minor modifications) is used and the selling price is only a small amount more than the current Arduboy. However, if there are additions, it still has to be backwards compatible, such that almost 100% of existing sketches will run with only a recompile, and the development environment remains the same.