With the rise of RISC-V CPUs in devices ranging from $9 to hundreds of dollars it is clear to see that we will not be seeing a RISC-V based Raspberry Pi for the foreseeable future.
That's the rather obvious notion, isn't it? I just don't see it, however. The Raspberry Pi Foundation is serious about long-term support. It took them forever even to upgrade the OS to 64-bit and they've stuck with Broadcom and its beleaguered VideoCore GPUs for the entire ride. I think the last thing they want to do is switch to RISC-V, but if ARM now has voting shares, that's guaranteed not to happen.
Doesn't really matter, though. There are plenty of other boards that are embracing RISC-V, and it probably won't be too long before the market converges around a couple leading brands, with a degree of community support approaching that of the Pi.
I am glad to hear that ARM is appreciating the role that the Pi has played in their success, from on boarding new developers to providing a platform for porting & optimizing legacy code for ARM cores.