Yes, there are a number of improvements that would make the auto-complete feature better.
The current iteration of it just focused on basic functionality.
Improving it is on our to do list - both in terms in functionality and aesthetics.
Please keep on making your observations and suggestions. They are great! It will help direct the improvements once we get there and also shows which features are in demand.
p.s. IntelliSense is a MS Visual Studio feature. We just call it the SkookumIDE auto-complete.