and while its from 2010, i kind of get theyre point that its still a valid game. I mean HOTS came out it 2012, and it used the same engine and gameplay system for the most part, and the protoss campaign will be comparable. So while it was ahead of its time in 2010, blizzard will knowingly be releasing a behind its time game in 2014. I guess they want to keep the trilogy as "one game" so you can pay the $40 for the game, and like $10-15 or whatever it is for each expansion, keeping the $40 original relevant.
Kind of a weird strategy, look at Assassin's Creed, they are constantly pumping out amazing connected games but they all are up to par with the industry's best at the time.