At the risk of playing the abused 3e spouse that keeps refusing to press charges on 4e, thinking maybe this time, things will be better*

.... what is said about the 4e PoL version of Sigil? How long is the section? How much detail? Any major differences (beyond what we know from 4e MotP) versus Sigil from 2e/3e? How much is new versus copied from 4e MotP?
*I'm joking here. The 4e stuff is a totally different setting, totally different game, so continuity no longer matters and I'm not taking this all nail-bitey and serious-like.