Oh no I do agree - a WOW environment would be rubbish but depending on how good the game is I would seriously consider paying a subscription to it. There is more than enough proof out there that the pay as you go model works, but it does not have to be all doom and gloom - as I suggested a partial online component could have its advantages.
From the crowding situation the problem would not arise from there being an overcrowding of ships rather from the server lag involved in sharing information with several thousand people at once. There are several systems in EVE that most people avoid like the plague - it would not be cool if SOL became like that.
I wouldn't be adverse to paying either (depending on the cost of course)
I would like the option to multiplay in the same way as games like Call of Duty 4 MW. which goes to show how good games can be. and gives you additional depth without having to wait for some "orrible little nurk" to waste you when you least expect it!
Its a very exciting time for us though, computer technology is advanced enough for most if the ideas posted on here in theory to be implimented.
I again don't envy you guys at FD in deciding what you are going to do to create E4. it's going to be one of the biggest releases in a long time. I would think the media hype would be pretty big as well.