I'm assuming you are talking about the .NET Languages Add-on here. We have those items on the TODO list.
We've been rebuilding the .NET Languages Add-on from scratch over in the WPF/Silverlight platforms with a newer, better-designed framework that is able to support resolution and IntelliPrompt for more advanced features such as those. We already have implemented lambda expression IntelliPrompt there (http://blog.actiprosoftware.com/post/2011/06/30/SyntaxEditor-NET-Languages-Add-on-Lambda-Expression-IntelliPrompt.aspx
) and plan on adding the other items in the coming months.
The WinForms add-on's codebase would need to have some very significant changes to support them, which is why we moved to rewriting a better add-on implementation in WPF/Silverlight. Once the SyntaxEditor there has all the feature areas covered that are in WinForms, we hope to port the newer design back to WinForms as well so all three platforms use the same object model and have similar feature sets.