I can tell you search will be one of the next big areas of improvement for Bear as the editor is for Bear 2.0. It’s a little too early to discuss search core improvements, but we do want to make search less technical in terms of UI and more powerful in terms of features.
Can you please tell me more about why you want to search inside body, links and wiki links?
Can you tell me more about the tag search issues and how 4/5/6 will help?