I picked up this comment from "Thomas the Tank" in the Guardian's Comment is Free...
"If there is a capacity problem on the West Coast line we should let Deutsche Bahn know quickly as they're proposing to bankroll new Scottish services utilising some of this non-capacity. But keep the capacity options between Rugby and Birmingham quiet or they'll want that too. And if you want even more capacity just spend a bit of time standing in the quiet on Banbury station to see where that might come from as well.
"Still more? Then we'll electrify and upgrade this line through Banbury too. And after all that, if we still aren't satisfied then connect the West Coast to the old Great Central at Rugby and reopen that for freight and as a diversionary route. (amazingly, HS2 would destroy this valuable future option).
"Still not content - then let's reopen the Peak line north of Matlock (perfectly feasible and relatively short) which would restore the old Midland route between Manchester and London.
"This will give the East Midlands a better service to the north west too - but that's not to London so not fashionable I guess). As a trainspotter, I shouldn't really be encouraging all the many obvious and sensible alternatives to HS2, as I'll be doing myself out of the opportunity of photographing all these lovely spanking new super powered trains, roaring through pristine, virgin countryside. Lovely in the snow!
"As long as they don't build a new motorway alongside it. 'Well, there's already a high speed railway there so what's the harm in ...'