Cleethorpes to London service being investigated, perhaps as part of ECML upgrades?
Will just be a change to 1B81 and 1B90 starting and terminating at Cleethorpes respectively.
Also on ECML remove bottlenecks..can’t see how they do that at Welwyn, and does say in there remove flat crossings so that means change at Newark
More comments but no detail in the IRP, I'd be surprised to see this happen to be honest.
No, the TP route will be fully electrified (as will the MML to Leeds).
MML only as far as Sheffield and not Nottingham to Chesterfield but I agree it should reach Leeds (Wakefield Westgate actually) and Doncaster
That junction between Warrington and Manchester Airport looks interesting ... Presumably it would allow E-W, N-S, E-S and E-N? If all grade-separated then I can't think of any other similar junction on the UK network.
I was expecting on a South to West curve, West to North Curve and the direct route North to South for the Manchester Airport to the east towards to Manchester Piccadilly and Crewe
You can see it in this very plan. You have to start with the strategy before you know what you're delivering in a coherent, integrated manner.

coherent and integrated manner?

. The IRP isn't that I'm afraid, in my view.
In terms of the route to Marsden as suggested by the IRP surely thats going to cause congestion to its east, funnelling trains from two routes from the west, Standedge and NPR?
I am pleased that Toton has been replaced by East Midlands Parkway to allow direct London to Nottingham and Derby HS services. However losing the line north of there to Leeds and Colton Jn I think will prove to be folly as will the loss of NPR via Bradford. Huddersfield seems to me to be smaller and the current North Transpennine Route will be needed to serve local communities and stations so moving the faster services (today run by Transpennine Express) onto a proper NPR from Liverpool to York (and Hull) via Manchester, Bradford and Leeds. It will be interesting to see how fast the Fiddlers Ferry route between Warrington and Liverpool could be but I'd be surprised if it made 70mph in places (and maybe less) I believe.