Galactic Keep

Looks awesome. Why have they not done this with 4e? In fact, screw 4e.  I want to see this game with blue-map era megadungeons, using the blue-map cartography and red-box D&D rules.  I want APP ON THE BORDERLANDS!  I want SECRET APP OF BONE HILL.  I want RUINS OF APPMOUNTAIN.  I want CASTLE GREYAPP! Seriously, why can I not play turn-based party dungeon-crawlers with D&D rules and awesome