This is settled law. Means these are no-go areas. There is unlikely to ever be a parliament where a government will have any kind of majority to even attempt something like this, if they do the SC's position is clear. In theory, a new constitutional assembly can be created. In theory.... As far as the rest, it is also equally possible the army may not support (in theory) the government, in which case it simply does not matter what anyone else wants. That is fantasy land, we are discussing in the realm of constitutional possibility.