Seems like speculation to me, not sure why Glock would introduce an optics ready G40 with a run of optics milled models that already exist when there's no standard model offered. Maybe the G40 will happen, but until it's official, it could be anything. I'm not a 10mm fan but introducing a new 10mm seems strange just because while it does have a small cult like following, it's not popular with the masses. On the other hand, Glock has nearly single handedly kept the cartridge alive with its 20 and 29 so for them to introduce another 10mm is possible, I just wouldn't think it would sell big overall.