According to Liverpool Councillor & MerseyTravel Chairman Liam Robinson at todays MerseyTravel Transport Customer Forums he said that MerseyTravel and Virgin Trains are in talks to run a new Liverpool - London Euston service via St Helens Junction, entering the WCML at Earlstown once the Liverpool - Manchester route is electrified in 2014/15
Only the DfT can contract Virgin to do this, unless it is open access which seems unlikely.
St Helens Jn platforms can only cope with 5 Pendolino carriages (118/120m).
It's not obvious where the stock would come from, unless it is a diversion of an existing service via Runcorn.
It would be more believable if the quote was from Virgin or DfT.
I suppose they might run trains this way at weekends (the Runcorn route is due for resignalling) but stops en route are unlikely unless platforms are lengthened.