The WarBirds team will launch the official download of the PTO theater on Wednesday, 2 April. This is the fruit of their last three months of labor, and will include a new PTO terrain, five new aircraft (and variants), two new ground vehicles, a few new or improved cockpits for existing aircraft, and a new strategic resupply system in addition to many bug fixes and other improvements.. Though the update becomes official on Wednesday, they will upload it to some mirror sites earlier in the week to give everyone a chance to grab the download prior to release. Check with their downloads page for info.