Where does that lower image come from? I can't see it in Google Maps, or Earth, or Waze.
In Gmaps, I see that the Westminster Bridge road segment does now match the aerial image - but that's because both are out of alignment!
I'm guessing that, rather than moving the images to correctly align with the roads, they've moved the roads to align with the images!
I cam across an area of about 100 segments last night in Gmaps, where a Gmaps editor has re-aligned all the roads to the incorrect images. As a result, when you grab the GSV dude, none of the blue lines match up with the segments.
If you can supply me with any permalinks where you can see new aerials or think they might have been moved, I'll check.[EDIT] I'd still like to know where you saw that new image, but the rest of what I said is probably out of date. See below