Why, the other thread is more about getting OpenWrt on the onhub. That part has been done (technically that thread could now be closed, but I'll leave it open for some kind of user support as well), all you would 'typically' expect from an OpenWrt router should be working with that.
In this thread, you've been asking about something rather specific, namely supporting features available in the hardware which are quite different from what one would usually expect from an OpenWrt supported device, so why not keep discussions about those in this thread?
cool feature, very welcome addition, but I don't really see that to become part of the default images - so something for opkg install kmod-xxx <insert some kind of zigbee manager here>
while this should be technically rather simple to support (in the sense of getting hcitool scan to work), OpenWrt by itself doesn't know what to do with bluetooth, so it would need quite a lot of additional packages and configurations, so probably also a case for opkg install bluez … (kmod might be included)
not really anything I'd expect OpenWrt to do anything sensible about, but at the same time it's probably going to be a single small kmod, outputting its detected distances via sysfs(?), so adding this by default might no be harmful, but neither very helpful either (I might err on including it by default, otherwise opkg install kmod-xxx)
again, a cool features, but a rather large (albeit hopefully easy) addition, which is not very useful without quite a bit of configuration (configuring content sources, some kind of playback control), something that sounds like a job for opkg install ... again.
I'd look at this in similar way as the proximity sensor, probably a small kmod, outputting its values to sysfs, probably worth including, how to act on its output would be a different question
All of these features are nice and doable (if one can find and integrate the drivers, ideally for mainline as well), but few of them would be very useful for the default images shipping as they are, as neither are really router specific (in the light of a typical off-the-mill router running OpenWrt), require relatively large additions and quite a bit of configuration and new luci-apps. I would suggest to start approaching this with a wiki page (chapter on the existing device page), describing a sensible setup for these features - once that is done (maybe even a community build adding these), the question of integrating the findings can be revisited for OpenWrt's default images, but right now, it's probably too early for that.
As far as the necessary development for any of the 'special features' named above goes, this thread is probably the best location.
Disclaimer: I'm not an OpenWrt developer, not speaking for the project - the above is my opinion only. This is only answering to your request to close this thread (right now) in favour of the more generic device support one - but I can be convinced either way.