I think it’s fairly clear that none of those topics are top priority for the developers given their planning for this year anyway. That’s not necessarily a criticism, just a fact of where things stand given their capacity.
The devs mentioned specifically that ATC was unlikely to see an overhaul over the next year or so in the last Q&A. They seemed open to a long term improvement, though.
We will be getting a scenery gateway this year, though it’ll be limited to “airport logic” and not scenery, and the SDK folks explicitly shot down any expansion of this tool in the near future at least. The broader strategy for Bing seems to rely on the discrete world updates.
The marketplace design and Zendesk have issues, but there’s no evidence that they’ll change significantly any time in the near to medium term future.