We have created a development roadmap page on Trello. This allows everyone to see what we have already created, what we are working on and what we have still to do in our current phase. Have a gander. Any questions feel free to askhttps://trello.com/b/Thq5EAPy/exile-onl ... nt-roadmap
If this is something you and your team intend to use actively; then this would be a great idea as players can view your progress and dedication. However if this is just "an extra on the side so people can see", people might think you are not doing much since it is not daily updated.
A good example of companies sharing their progress is Unknown Worlds with their Trello board