(This page is really out of date.)
If you are interested in contributing to the Studio, the following are areas where we would like help. This is by no means an exhaustive list, so if you have other ideas, please make suggestions! See the feedback page for details.
This list is a bit obsolete - we have other wishes which I'll add here soon!
For more ideas, you can look at the list of opened, non-assigned bugs / enhancement requests at http://code.google.com/p/android/issues/list?can=2&q=owner:tools%40android.com
To get started, see the Contributing page for more.