It'd be cool to be able to quickly draw/loop automation, based upon a chosen waveshape, and tempo-locked to the grid value. Waveshapes could include the common Sine, Triangle, Square, and Random. ProTools has a feature similar to this.
Check out 7:43 of the following video:
https://www.youtube.com/watch?v=8SGptQi0Lk0
It'd also be cool to be able to adjust/morph the curvature of the automation over time (ie, from exponential to linear). Imagine selecting 8 bars and morphing the shape of each repeatable automation from one shape to the other.