Risc-V for Raspberry PI
In an interview conducted by Jeff Geerling, Eben Upton discussed the possibility of migrating from ARM to RISCV for the next generation of Raspberry PI.
Eben indicated that the main barrier was familiarity with ARM within the Raspberry PI foundation and the lack of maturity of tooling for RISCV.
He did hint that if they were to move to RISCV it would be at the low end/microcontroller level first.
Time link to the RISCV part of the interview here.