Indeed. I'm not actually in favour of it and would prefer a full tunnel to the St. Pancras triangle (funnily enough, I prefer my own ideas...fancy that

), but it does show that the widening is feasible.
Perhaps. The freight all ends up running on the same lines west of Willesden Junction though, so there's clearly line capacity for it. I kinda envisioned the freight using paths vacated by ELL trains terminating in the bay(s) at Willesden.
Ideally, with reinstated quad track up the WAML from the Stratford area to get the freight to Broxbourne, the London Orbital route would have much more spare capacity for distributing freight than the NLL does. It's proximity to the M25 would also be a boon...and multiple freight hubs like Radlett would be more attractive. In that grand scheme map I posted, I threw in a somewhat tenuous (mostly tunnelled) route from west of Romford (...and Upminster, and Grays, etc) up to Broxbourne via Epping, which would see the freight run over very little of the GEML at all...
Thanks for commenting. I love constructive criticism, as it helps me develop my ideas further. Now, if you say so...but given the traffic between Watford, St. Albans, Hatfield et al. despite the M25 being as bad as it is, I'd say there's a fair few people who want to travel between these huge population centres.
There is, and it's a combination of the cycle path on the old trackbed and the golf course immediately south of the old London Road station.
I think you'll find there is.
This is something I put together a few years back to illustrate kind of what I propose.
The platforms for the "orbital" line are on the golf course's car park, and the relocated mainline station are on the widened spot of greenery north of London Road. Looking at the imagery now, in the intervening years it seems a new construction is happening on the site of the old huge car park that used to be there. This slightly impinges the chord I put in, but nothing insurmountable.
Hmm. Interesting. I don't see it as too much of an issue, after all, no-one uses the bus if they need a speedy journey, but a valid point nonetheless. Perhaps a new road over the railway branching off Colindale Avenue, over the railway, and through the low-density industrial land to join Shirley Road would prevent the need for a diversion, but then you'd still be avoiding the town centre, which, to be fair, the existing station also does pretty well.
The route looks clear enough still to be viable. Certainly no worse than some other reopening proposals over the years.
I suspect you haven't looked at my map, as you'd see I don't propose a reversal at Hatfield at all. I propose running alongside the ECML into Hatfield station on the derelict land to the west of the station, then diving down and passing beneath before running cross-country to eventually rejoin the old alignment to Hertford.
I'm intrigued by your statements...I see the old route quite clearly on the map imagery, with a path running along most of it.
Indeed, it's a bit of a gap...but that just means it'll be quick. The patronage would come from linking Hatfield and Hertford, not to mention longer-distance traffic (such as the freight I mentioned in other posts). ...it's also why I don't like the idea of trams on this route...there is a distinct need for long-duration top speed running, which trams really aren't suited for, but trains are.
In your eyes, perhaps. I see lots of congestion and traffic, and believe a decent quick rail service would be an order of magnitude quicker than the alternatives (bus or rail via London zone 1).
I even worked out rough timetables once, based upon the services on the TfL Watford and NR St. Albans Abbey branches, and it was really quite competitive (IIRC, it saved a few minutes from the the bus Ricky-Watford, about 10-15 minutes to St. Albans, and at least 10-15 minutes for each section thereafter. Rickmansworth to Broxbourne came out at about an hour quicker, IIRC (it was quite some time ago).
(Basic premise is that it's about 15 minutes between each of the mainlines, and you want stations about 3-4 minutes apart - Work out the best station locations, then the times between them, then compare against journey planner suggestions for the same by bus.)