As you probably know, Liverpool Street station is currently closed to allow the demolition of bridge GE19, so that a new bridge carrying the extended East London Line can be built across roughly the same spot. Here are some photos I've taken today around the area (click to enlarge).
This is the gap where the bridge was, from the south side. The wall abutting Brick Lane on the far left is all that remains. Between the digger and the houses are what appear to be giant moulds for casting supports for the new bridge.
From the same spot, but turning slightly to the right. The demolished bridge would previously have dominated this picture. The building on the right is Shoreditch tube station.