There were many top level Terran matches recently. These games provide a good snapshot of the current trends.
ByuN played his first GSL game yesterday since his return from the military service. This post discusses the Engineering Bay block expand opening that he used multiple times against his Protoss opponents.
There are some interesting trends in the Terran versus Protoss match up. This post discusses some noteworthy shift in the metagame over the last few months.
TY is known for his series planning, but his planning across multiple series is rarely mentioned. This article discusses how TY uses information the opponent has before a series to his advantage.