Well I agree it seems unlikely that Serena or JJ will play this event.
However the tournament is allowed to have more than 1 Top 10 player if it upgrades it's prize money from $220,000 to $500,000.
so let me get this straight.
if you add more money to the tournament price you can get more top players.??
plus already serena and jankovic will get additional appearence $$$$$$$$$.
sounds pretty ridiculous to me.