I was thinking about this over the weekend.  I don't think we'll see any of these features on a ZRP-6, but I hope I'm wrong...

Since the ZRP-6 is based on the RP-6 then it only has 1 macro engine.  That means there is no way for it to handle an external event without then adding additional "engines" or some sort of buffer.  If you were running a macro, then a 2-way device sent feedback that caused a "Driver Event", it would be missed because the ZRP-6 would be "busy".  Exactly the same way that the RP-6 does when you try to issue a command while it's executing a macro.  You would need a minimum of another processing engine PLUS a buffer to be able to handle incoming commands from remotes/in-walls AND feedback from devices that could trigger Events.  (I think...)

I think it would require a completely different kind of processor inside the ZRP-6 for it to be able to do anything that required a constant stream of info coming into it; whether it's Events from a 2-way driver, or sense inputs, or whatever.

That's a shame, because there are a lot of other options out there in that price range that do more.  I hope I'm wrong...