Second StarCraft 2: Heart of the Swarm trailer leaked

It was not so long ago that a trailer for the next game in the StarCraft 2, Heart of the Swarm,  leaked onto the Internet and a last night a new trailer appeared on Youtube.
This second trailer, which has apparantly once again come from ‘unofficial channels’, shows a team of Ghosts hunting down Kerrigan with Raynor in hot pursuit. The trailer was obviosuly created as teaser promtional material and the it does look great.
Back in December the first video leaked and was obviously not complete and apparently showed the end of the game’s plot.
Source: Dailymotion.