are IET passed to travel through the Elizabeth line route?

[whole diary]

[Electric train]

Thank you for your reply's,

was thinking more of the IET^▸ (Intercity Express Train - the now official name for the replacement for HSTs (manufactured by Hitachi in Kobe, Japan)) passing straight through from Paddington to the east(other) side of london

Well if you wanted to link the West Country to Europe I guess that it shouldn't be too difficult to send an 80x round the North Downs line to Redhill and thence to Ashford for onward connections (which would need Eurostar to start stopping again, but anyway). 

As for the North and South London Lines, I suspect they might be a little too curvy for 26m long carriages. East-West rail might work nicely though - Bristol to Milton Keynes via Oxford anyone?

Why the slow route via the North Downs?

From the GWML^▸ (Great Western Main Line) via Up and DN Populars' (the link from Acton Yard to the North London Line) round the North London Line to where in has a link onto HS1^▸ (High Speed line 1 - St Pancras to Channel Tunnel) near Kings Cross at Incline.  So you could have a South Wales and West Country trains non stop Reading - Paris 

Fair enough.

Actually, I wonder, if the various bits of 25kV infill were done, could you perhaps have a Javelin from Paris to Bristol round the NLL seeing as it has TVM^▸ (Ticket Vending Machine)-430 signalling for HS1?

I cannot see departure stations for International train services expanding outside of the current 3 in the UK^▸ (United Kingdom), and 2 of those are currently closed (Stratford is not likely to ever operate as and International station.

The only way it would be viable for trains from other locations in the UK to destinations in Europe would be for the UK to join the Schengen area making crossing from England to France the same as crossing the border of England Wales or England Scotland      Cannot see the UK being part of Schengen anytime soon.