And I bet a kind of development roadmap would be welcome by the funders who became shareholders of the corporation.
I'm almost sure there is a kind of internal roadmap already which might be quite detailed in terms of tasks, dependencies, time frame, etc. (for basic project management things or whatever).
Otherwise it wouldn't have been possible to calculate the amount of money required (at least $200,000 for the basic version of the exchange) for this endeavour.
A roadmap with some milestones could be part of the website - that would be attractive for both current and (possible) future shareholders.