It would be also great to shortly explain why some features/issues are backlogged. Let’s say, you have a list of commonly requested features and you explain there “Hey, we cannot do custom orientation gravity yet because it requires refactoring navmesh system, lots of physics code, etc”. Single paragraph of text would be enough. It would 100x better than simply marking as Backlogged aka “noboby knows what happens and why”. Maybe Trello is good place for it, maybe not. I don’t care where the info would published - just keep in one place.
Of course no game engine company does it on regular basis. But you could be the first one 