I did. But there is only so much you can change about the fundamental architecture of the OS before the applications stop running on it. We aren't in a situation like Apple where they can make huge changes, such as switch processors, and the software developers will quickly port over a critical mass of applications. We aren't even in the situation of 6 years ago with 32 biting software, as that's a relatively simple process that doesn't even need source code in most cases. Significant changes to the majority of applications required to cope with, never mind take of advantage of, a radically modernised OS, can't be expected now.
So RISC OS will still have to exist with in the limitations of its core architecture, but that doesn't mean a lot of things can't be enhanced, and you can't take emulation way beyond the speecy emmy toys we have today, in to something that resembles professional VMs, with peripheral utilisation, hardware acceleration, deployable images, checkpointing & rollback, etc.