Halfling is looking really good for assassin to me with this change. There is enough points for no mercy, but I will most likely still use kta even as a dex-based assassin (the difference in damage is small) and go for more sneak attack in the halfling tree. Shadar-Kai is also a really interesting possibility since maxing out dex won't be as necessary to achieve a high assassinate dc with a dex build. Also I can now take epic reflexes or something else in place of insightful reflexes which is quite nice. It looks like I will be getting more than a small boost from this update after all.
I am sensing a Lam build is near so we may have a chance to try it out in the next 10 days.