After their Cup win at the second round of the Series in Dubai, hosts South Africa are top seeds and head Pool A, while runners-up Australia, third-placed Fiji and the fourth semi-finalist New Zealand head the remaining pools.
The 2014/15 season carries added significance because the top-ranked sides after the ninth and final round in London in May 2015 will qualify directly for the Olympic Games in Rio in 2016.
Following the pool draw for round three of the Series, which was made before the Cup final at 7he Sevens Stadium, South Africa head Pool A in Port Elizabeth and face Wales, USA and Kenya.
Dubai runners-up Australia will play Argentina, as well as Portugal and Zimbabwe in Pool B.
Series leaders Fiji head Pool C as the third-placed team in Dubai and face Scotland, France and Dubai Shield winners Canada.
The reigning Series champions New Zealand, meanwhile, will play England, who they beat in the Dubai quarter finals, Samoa and Japan.