Will it definitely be ATW running the Liverpool-Chester service? I have been presuming so as there is a clear aspiration to eventually extend Halton Curve services into Wales but I've not seen anything official about which TOC will be running it.
Interesting from an ORCATS point of view, because if it is ATW there'll be yet another operator between Lime Street & South Parkway (to add to Northern, London NW, TPE & EMT) as well as between Lime Street & Runcorn (to add to London NW & Virgin). Indeed, there'll be no less than six TOCs operating out of Lime Street high level, which will be fun for livery enthusiasts.
I do wonder how much a ticket will cost between Lime Street/South Parkway & Chester. It seems despite joining the combined authority, Halton doesn't want to give up its transport competence to Merseytravel. The only think that seems to have changed at the moment is Merseytravel branding at bus stops in the borough. You can't currently use either Saveaway or Railpass tickets in Halton. As someone who may well find it quicker to get to Chester via an 86 bus to South Parkway it would be disappointing if there was a significant difference in cost especially as I'd have to pay separately for the bus to South Parkway whereas a Saveaway would cover my entire journey via the Wirral Line. I think Merseytravel needs to, at the very least, get some sort of bilateral arrangement in place with Halton where 'all area' Saveaways can be used via Runcorn, in the same way they can be used on the Cheshire & Lancashire sections of Merseyrail. While we're at it, an agreement with TfGM to add Bryn & Wigan North Western would be nice too.
I must admit I am a little puzzled that Halton is included within the Liverpool City Region (& Merseytravel) but we are still unable to visit most parts of Halton (without additional payment) because it is outside the former/present Merseytravel boundary. Clearly, this needs to change but it may be not that easy especially as far as the trains are concerned. Runcorn Station is a Virgin Operated Station and consequently I cannot see them allowing people with Merseytravel Passes / Saveway to use their trains, let alone the station. I think this would also apply to London Midland too although they do allow passage to and from Liverpool South Parkway but again I cannot see them extending it to Runcorn Station. I do not see any problem with Halton BC operating their own buses as they do serve parts of Merseyside already, so that is not an issue. I think the best we could hopeful and eventually (I would assume) that Saveways and Travel Passes would be valid on Buses but not on trains to and from Runcorn Station. It would be nice, I must admit but don't see that happening.
(As a side issue, our Metro Mayor, Steve Rotherham has already stated that the two bridge crossings are nothing to do with him although both within the Liverpool City Region - strange and how to avoid confrontation with 'local' people!!).