I have seen several people mentioning turning the PSU (assuming SFX-L in this case) around to use the PSU fan as a pull fan in a slim push/pull AIO setup. What I have not seen mentioned yet (maybe my oversight) is that obviously in order to achieve this you would need to cut out the plastic shield behind the PSU, although I guess many overclockers are quite happy to mod their cases. I dont know if I would be brave enough to attempt to damage such a piece of art though.
Well using an SFX-L PSU makes the gap between bottom part of case and the PSU pretty small, and having to route all the nessecary cables and tubing it would be a mess tbh... but we'll see when the case arrives some day in the future