A look through the document and the standouts are;
The number of mentions relating to Football (UEFA/FIFA and Football stadium advisory technical recommendations met, technical areas for the benches, artificial turf border around the pitch, access to stands being segregated) makes me think they have a Football team lined up as a tenant.
A significant increase in toilet facilities - we're talking each stand having more than the entire ground currently does.
Cantilever roofing for the main, WRE and Princess street stands so say bye bye to the obstructed views, Railway end remains open to the elements.
Concourses
"slightly" reduced capacity to 10363
Training pitch being rotated to allow a fan park
It looks like at the very least the cladding (dark grey, anthracite grey, black and gold) has already been ordered - the company providing it is specifically mentioned. Steels and concrete types are mentioned but no clear indication it's on order.
Floodlights are 30m high