It's been announced that clubs will be paid $10k per day for each day one of their players is at the World Cup starting from the official preparation period, which I believe kicks in on the 15th November.
We are likely to have 3 or 4 players in squads of Ghana, Senegal and Canada.
Based on group stages only if all 4 (Yiadom, Loum, Rahman and Hoilett) are picked, we would receive the following - my understanding is we get paid for loanees as they are essentially Reading players this year.
Yiadom & Rahman - $170k each
Hoilett - $160k
Loum - $140k
So $640k - or around 570k GBP.