The World Cup will have 128 players who earned spot through a variety of criteria. The top seeded player is Ukrainian Vassily Ivanchuk, but it is interesting that this tournament will not be as strong as the Libyan FIDE KO won by Rustam Kasimjanov. In addition, none of the San Luis participants will be in Elista. In terms of federations, Russia leads with 23 participants, with Ukraine (10) and China (9) following.
The paired the first round using the #128 vs. #1 instead of the #128 vs. #64. This format means that it will give the strongest players a better chance of advancing since the first couple of rounds will feature heavy mismatches. For example in the first round, Ivanchuk (2748 FIDE) will face Russia's Aleksandr Sibriaev who is rated at only 2264. Second-seeded Etienne Bacrot (2725) of France will face Zambia's Stanley Chumfwa (2303) who sits at #127.
Players (MS-Excel, WCC website)
Pairings Tree (MS-Excel)