There's no real point to reveal build when there's no even a support of multiple data folders, no working geoscape and no necessary externalization put. Yes, battlescape works pretty convenient to give some nice impression and make teasing videos. But it's not for public. Public aren't developers who can sort issues out properly and fix them. The result of premature revealing will be tons of reports and devs bloody distracting. So it's no-no, until it will be truly playable, with proper externalized stuff, researches, manufactures and multiple types of terror missions... not just Battlescape.