The shop had value as a symbol of the indomitable east end spirit and a triumph of the little man. But now the big man has won and the shop will be absorbed by the monster behind. The only architecturally honest thing to do would be to complete the original Wickhams design, as a symbol of the triumph of the big man over the little man in the end.
A £65 levy on those not paying close attention is hardly surprising from ARB. I joined the register this year and was charged £85 for 35 days registration. Someone is doing well out of all this, and I doubt it is the architects.
20 Fenchurch Street is so overbearing upon it's context and has been so publicly flawed that I can see it causing a long pause in the development of tall towers in the City.