I think the argument of wether we could fill an 80k stadium comes down to ticket prices. The club already realise they can happily drop prices down to £10 for CL qualifiers which bring in currently a 44k full house. Same would just apply to league games. Tickets for matches now don't command a premium and i wouldn't really class the 'reds bar' as an experience. Hicks,gillet and the USA are all about entertainment and service. For 40k of supporters on matchdays now the only prematch entertainment is a pint in a very overcrowded pub or a long wait for a hotdog inside. Pretty rubbish really.
I'd expect a tiered ticket/service price to come in. 40-60k of tickets to go to the core support that we are guaranteed on todays support who'll easily pay £30-£35 to watch the game. Plus another 10k who'll pay a bit extra and 10k who'll gain cheaper entry. Wigan currently change their ticket prices on a number of factors depending on how successful the team are doing, crowd expectation etc. I can see LFC offering a flexible pricing structure that will hopefully full the stadium week in week out. The moans about thousands of empty seats for carling cup games has never been solved since the initiation of the competition, and only ever will be resolved with dirt cheap tickets. Even then the logistics of getting 80k of support for a midweek cup game go against the competition. More the opportunity to give a few k of tickets to local schools.
The Hicks,Gillet plan is about growth as well. even if we only have a fanbase to fill 60k in 2 years time, who's to say once we start winning a few league titles that 80k attendances wont be the norm? Whatever we have as a club and fanbase also needs regeneration to take us into the next era.
Sky sports regenerated english football as a whole in the 90's and bought people back to the game, let LFC take club supportship to a new level for the next 20 years..