The Warriors will be adding one potential impact player to their rotation for the season's second half, but he'll be returning from an injury rather than arriving via trade. According to Marcus Thompson of the Bay Area News Group, while Golden State is welcoming Andrew Bogut back to the lineup, it's highly unlikely that the team acquires another player via trade. One team source told Thompson that the odds of a Warriors move are "remote."
The Warriors wouldn't mind adding a big man, and Thompson mentions names like Timofey Mozgov and DeJuan Blair as potential fits. The club could also use a backup shooting guard or an athletic wing. However, acquiring anyone that fits that bill would likely require Golden State to give up a player it likes, in which case the team would prefer to stand pat.
The Warriors are also slightly above the luxury-tax threshold, so if anything compelled the team to make a move, it might be a desire to get out of tax territory. Still, Thompson believes the Warriors would have to shed a big contract like Richard Jefferson's or Andris Biedrins' to get below the tax line, which is extremely unlikely.
Even without Bogut for most of the season, the Warriors are exceeding expectations, having recorded a 28-17 record so far, good for fifth in the Western Conference.