A more detailed look at the plan does little to change my view that it's been dreamed up by some intern on job experience during their coffee-break.
Here's the best example from among some fairly poor illustrations in the document, showing the airside and landside changes that would accompany use of the standby runway:
Key to airside changes:
1 Widen existing standby runway
2 Relocate Juliet taxiway
3 New resequencing-holding area
4 Reconfigure existing RET
5 New end-around taxiway
6 Existing taxiway used as end-around twy
8 One further pier project (in one of 3 location options shown)