When I first made it it did have some really sweet drow-related loot! Maybe it got nerfed, but hopefully not removed all together. If a DM could check I know there should be at least one custom loot chest. Unfortunately though there is always a chance that you will only get gold from these chests.
The quest did not get that well play tested for a long time after it went in since very few groups did it, it was meant to be at the high end of the risk/reward range but even bearing that in mind I know the first few parties found it extremely tough so I toned it down quite a lot and boosted the rewards. Having said that I can imagine the improved AI would make it a lot tougher, since a lot of the opponents had leet powerz that the old AI wouldn't use effectively. The quest only uses Custom NPCs which are not that widely used in the module so it should be possible to nerf them directly without upsetting other balances.
I also remember I had to add in a weaker opponent "X Militia" so that small/lower level groups wouldn't be outmatched by spawning too many of what were originally the regular opponents. If groups that found it over difficult could feed back whether they generally spawned the weaker ones with one or two regular or got swarmed by the regular it might help rebalancing.