Q: Due with higher clock frequency?

There are processors with a clock frequency of 200MHz or so. Or even higher. They are probably ARM type, what else could they be. Is anybody able to tell is there going to be such Arduinos. Or has Atmel said something about this.

Raspberry PI has ARM and a clock of hundreds of megahertz.

It uses a different ARM chip made with a different process.

It uses a different ARM chip made with a different process.

I guess it does, but what about Atmel. I dreamed about a bit in the Due CPU which would enable cache and rise clock frequency. Dream on, I guess.