I'm not exactly happy about rapiers being left behind by the enhancement changes. They're a pretty iconic rogue weapon, and require weapon finesse like daggers and kukris to use the dexterity bonus. I can see the appeal of making daggers/kukries more desirable as a rogue weapon, but it's unfortunate it's coming at the cost of the rapier.
Why not just give daggers and kukris an innate damage increase over other weapons, but let all finesse weapons have the capability of using Dex for damage.