The question is in the title plus answer me, because I think that Trello is a useful tool but I don’t see any activities about the game development. 
The latest desktop tuesday was about the roadmap image. The title is “DT: ROADMAP++, PART 1” notice the “PART 1”. It would suggest there are more parts incomming, maybe including the Trello as well.
If you actually read the article… you will find the answer in the very end 
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I just checked out the Trello board and it is up to date and working. 
I voted for a bunch of lovely items.
Yes, just after this post i saw that the Trello Roadmap were updated but it were’nt since may 2016 !