While working for Bodhi, she gives you a choice between two tasks after you've collected the package from Mook. One of the tasks involves killing a noble and framing the Shadow Thieves. I'm not sure how you could improve this quest, but it might be worth looking into. The guy has two bodyguards but they're not too tough. The halfling mage doesn't wield much magic at all
I'll consider it, but since the person in question is supposed to be just some misc noble, not truly a member of the Shadow Thieves but merely working for them, that encounter wouldn't get a significant boost from me.
Gaelen's house is quite small, though one or two archers near the stairs would turn the Gaelen encounter into a tight trap. Maybe Gaelen could run upstairs after sicing his men on you.
I don't think he should run upstairs, it would be unwise to do so as it would lead him to a dead end, thus making him fight the party without any help. Also, if you noticed, he actually helps his bodyguards a bit by using the wand of paralyzation and attacking occasionally.
I, too, was disappointed with the Shadow Thief guild hall lower level. I think Aran could've summoned the Air Elemental and Shadows -- it's within reason at least. Aran does summon a cool demon, which you should keep in his AI.
Actually, I'll most certainly remove that. Demons are just too unreliable to be of any use to enemies IMO. BTW, the shadows and orcs seam to be hardcoded as 'spawning points' into the .are file instead of just being placed so I'll definitively have to do some work there. I'll probably replace them with golems and perhaps some lower level thugs.
If you upgrade the traps, what will you replace them with? The traps should be less magic-based IMO.
Yes, I disliked some of the magic based traps as well i.e. Maze and Dire Charm, not very roguish indeed. I'll try to add more mechanical traps like the hidden spear trap, poisoned arrow trap, wall arrow trap, Acid blob trap...etc but I will keep some more plausible magic based traps like the Lightning bolt trap, Fireball trap, Cloudkill trap, Web trap, Stinking Cloud trap etc. An interesting spot for adding new traps would be the training course with the guillotines. I could place some nasty web traps there and give the archers on the sides some arrows of detonation. The narrow corridors where the orcs were seam perfect for a few lightning traps. I'll also try to add a Dispell Magic trap at the entrance to Aran's chamber.