Again, note its strategic advice, doesnt mean any of it will happen.
It doesn't mean it's going to happen but the west coast mainline isn't just going to be left empty after HS2. The document contains main planning principles which are almost no brainer options. I'd say they're a good bet to happen. These principles are:
Increased freight services
New limited stop London services twice an hour calling at Nuneaton, Tamworth, Lichfield. This in addition to the current hourly train.
Hourly London services to Shrewsbury.
Coventry to London services calling at Rugby, MK and Watford Junction.
All or nearly all trains stopping at Milton Keynes.
Four new stations.
Continuing a Manchester to Euston station calling at Stockport, Macclesfield, Stoke, Rugby and Milton Keynes.
Faster services to Northampton from London.