$\mathcal Z$-stability and finite dimensional tracial boundaries
  We show that a simple separable unital nuclear nonelementary $C^*$-algebra whose tracial state space has a compact extreme boundary with finite covering dimension admits uniformly tracially large order zero maps from matrix algebras into its central sequence algebra. As a consequence, strict comparison implies $\Z$-stability for these algebras. 
Andrew Toms, Stuart White, Wilhelm Winter
math.OA