I want fatal flaws (required negative traits) in TS4
To make you sims more dynamic! No more Mary Sues. Its easy to creative the perfect sims. Good,happy, creative/athletic/etc. They'll be happy and easy to play all the time. The Sims Medieval has fatal ...
I enjoy the flaws in the Sims Medieval but the way the game is set up they'd probably need to give us an extra slot for it, and some new traits as well, so it probably wouldn't happen.