It's basically what has been announced here, though, no? There's no technical impediment to a CA continuing to hand out 2+ year certs. The only reason they would not do so is that webpages will start breaking if they're accessed from Safari.
- Safari
- max 398 days
today. Tomorrow they may change to be 397 days, or 39.8 days, or "until the next iPhone is released".
The 398 days isn‘t something they came up right before they presented it. It‘s already 3 years old...