Console = major sales
Making the PC version far too superior = making the console players feel not as great as if the PC version is just similar or slightly better = major loss in sales
That is simply a thought out of conjecture and nowhere has it actually happened like that, ever. I can actually provide evidence to the opposite effect to this kind of thinking. Firstly, console players "choose" their platform, and that's fine. I love consoles myself for certain genres of games and play my 360 quite often. When it comes to open world and deep RPGs, they should be developed for PC first, that's my opinion.
Historically, console games have always outsold PC counterpart games going back to the early 1980s when PC game started taking hold, yet development of PC oriented games that are cross platform worked and all sold well. To the point of evidence and the opposite effect:
Example #1 - Dragon Age: Origins was developed specifically for PC, then ported over to console (it was actually never going to come to console until EA bought out Bioware). Yes, there were "some" complaints form console gamers that the PC version worked better and wasn't made to work well on their platform, but they were very few. Consider that DA:O sold well about 3.5m on consoles, smoking PC sales and most console players loved it. AFAIK, the PC version sold around 1m
Example #2 - The Battlefield series has always been PC first, then ported, but smokes on consoles for sales. Look at Battlefield 3, a PC first developed game, it has sold close to 6m on consoles (excluding this weeks numbers) and is pushing 1m on PC.
Now the opposite effect:
EA/Bioware went after the console market on the thinking Dragon Age needed to change its style of gameplay and take away RPG elements to make Dragon Age 2 more action/adventure than anything what was in Origins, as to attract the console crowd. The result was that initial sales were great because of pre-orders based on the greatness of Origins, then the sales plummeted. It sold around 1.6m total across all platforms and sold 330K on PC. It is barely over 800K in sales just on the 360, where Origins sold well over 2m on that platform. Bioware even admitted that the sales were not what they thought and experienced heavy backlash like they never have with DA2. They stated they will revamp the series to reflect more player agency and storytelling than action and cinematics. Most console gamers didn't like the game and made many comments in the Bioware forums, something that was unexpected.
Skyrim in its first week already pushed 600K just on the PC for sales, so giving that platform the ability to do things that the hardware can provide isn't asking too much, especially considering that at $60 a hit, they already made over $32m on the game just on PC. I like the game a lot, I like the story so far and I like the system. All I want is an updated hi-res pack for better textures and make the UI more lore oriented, no black and white bland interface. Give the UI and menus nice old style graphics like Morrowind and Oblivion had, that isn't asking much.
To the OP, I give a resounding "NO" to multiplayer.