That's the sixty-four-million dollar question. Our firm is involved with the East Block rehabilitation, so I know exactly what you're talking about.
That's the centre of the debate. The first things that happen are comprehensive evaluations to ensure we understand what are the character-defining elements that give an historic place its historic and heritage value. Those are then in a sort of do-not-touch zone: preserve, enhance, do not destroy, and do not make unmitigated changes.
The whole process of rehabilitation is often a change management exercise. Things have to change because it has to be modernized for contemporary use or because there is a problem with integrity and it needs to be restored. Change has to happen, so it's a question of how to manage that change.
There are unbelievable levels of nuance in order to achieve that, but in the case of a place such as the Centre Block, you could be very sure that all of the character-defining elements, all of those aspects that you know and love and wouldn't want to see changed, will be highly respected. It would be quite surprising if new interventions were at a level that did fundamental change to the building.
The Sir John A. Macdonald Building is an example. We had to take the teller counters out of the old banking hall. My gosh, they were a character-defining element, but the new use called for a big ballroom, so there was no way we could keep the teller counters. In that case, they were sacrificed for the good of the overall project.
In a case like that of Centre Block.... Of course, it remains to be seen. They've just given the consultants their working papers to get going on it, but I would expect that it will be largely intact, and wholly intact when it comes to the character-defining elements.