Where is blizzard trying to perfect starcraft?

What I mean is. They obviously got balancing down granted. But I know their trying to get something different out of the game. I mean are they trying to make it a game where its easier to make comebacks or are they trying to make the overall game play last longer. Whats their main goal in this sequel?

 

They said the game's would be about 20 minutes. So I'd say no for them being longer.
They probably just want what most sequels want, to keep the 'magic' of the original but have fresh units, abilities, and storyline.

 

Their goal is to make a game better than original StarCraft. And I think they're doing a good job.

 

Yeah and IMO so far so good

 

Yeah, I think their main reason is to make the fans happy