It would be nice if the SKETCH pattern tool had the option to pattern in both directions (like the feature pattern allows).
Also, a DIAMOND or OFFSET pattern tool would be nice, both in sketch mode and feature mode. It would make doing a "honeycomb" pattern MUCH easier.
It would also be nice to be able to edit layered sketch patterns. For example (simple scenario), if I pattern a circle up, left, right, and down (4 operations), then pattern that entire thing elsewhere on the sketch, I can't edit the original 4 patterns (# of occurances, for example), I can only edit the mos trecent sketch pattern done (via RMB).