It's way too early to make that call. This is a proposal for collecting feedback. I am not sure if this has been proposed before, but I would guess you would make these proposals from time to time to gauge the feedback, and when you see support for keeping it fall to a low level you can finally make the jump. As one of the comments in the thread mentions, now might not be the right time but you can't keep supporting it forever. Eventually you push 32 bit apps into emulators like what happened with 16 bit.