Copying what I said in the other thread:
I think a lot of people are either misinformed or delusional. It's not just the Lep that needs tearing down, but also the NW corner.
The North cannot be fully utilised due to concourse issues, on top of the issues with the North stands structural integrity, ideally the North would need to be rebuilt.
All this talk about filling in the corners is all well and good but even the Kop cannot be fully utilised due to concourse and egress issues, so the Kop would need major work also.
To stay at Hillsborough we'd need:
Lep and NW corner demolished and replaced
North stand rebuilt with modern concourse spacing
Major changes to the Kop concourse so it can be fully utilised
If the Kop and the North can be fully utilised again, fill in the corners of the Kop
By the time you've done all this, it might just be easier to relocate to somewhere that also has room for things like a hotel and an area for post match entertainment similar to Southampton.