No idea whatsoever, best I can come up with is some bloke on Tony Kempsters forum who's put last years up and had a guess at this years.
Not sure if this is any good, but to give some idea, this was last years prize money:
First round – £1,500;
second round – £2,000;
third round – £2,500;
fourth round – £2,500;
fifth round – £3,500;
quarter-final – £5,000;
semi-final – £5,500;
runners-up – £6,000;
winners – £12,000.
Overall prize fund of £187,000
This year's prize fund is £200,000 and only 4 rounds before quarter finals. so with 1st and 2nd round money confirmed at £2000 and £2500, maybe it will look something like this?
First round – £2000; (22 winners = £44,000)
second round – £2,500; (14 winners = £35,000)
third round – £2500; (16 winners = £40,000)
fourth round – £3500 (8 winners = £28,000);
quarter-final – £5000 (4 winners = £20,000);
semi-final – £5500 (2 winners = £11,000);
runners-up – £7000;
winners – £15000.