I am excited to announce that we'll be starting Tier 5 engineering upgrade in the next couple days. Now's a great time to join and be a part of it all. Contact @PhyrexianHero in-game by mail and request an invite to Klingon Intelligence, or join our cross-faction chat channel s31-ki and ask there.
Anyone who joins and contributes to the upgrade will have store access by the time the project's timer ends. We'll have back-to-back upgrades after that with the Tier 5 starbase and Tier 5 shipyard, with the Tier 5 comm array starting a couple weeks after that.