Starcraft 2 Campaign - open-ended or not?

Seeing the large number of RTS's out there which have open-ended campaigns, I was wondering whether or not Starcraft 2 should have an open-ended campaign. I personally don't think so because they tend to get repetitive after a while. Post your opinions here.

 

open ended campaigns screw up the lore if they wanna come up with expansion

 

It's harder to have a good/well developed story the more open a game is.

 

Blizzard will not have an open ended campaign, there will definitely be a strong finish to the story we've all waited so long for.

 

seeing how WC3 wasn't i doubt they'll branch off too far with SC

 

yeah they have to one-up that last level of the Terran or Protoss campaign where you have to destroy the Overmind and have like 2 or 3 bases, with Terran and Protoss units

 

I'm sure the end of the EXPANSION is going to be open-ended, and the opposite for the original version. The original is going to end with a suspenseful situation with lots of tension for one or two races, or even better, all three.

 

probably open ended because blizzard has said they want to be really innovative with the single player. If it is open ended there will still be a large amount of events that are uncontrollable by your actions, so it shouldnt stuff up the lore.