Must-have that would make VanillaCMS really usable:
availability to include custom, own, normal language PHP script except writing page in pure HTML. Custom Fields should also be available for this option.
direct discussion at the end of page as an option(not just creating a discussions that are shown under page)
attachments to page or availability to upload custom files and "adding them" to the page content(+ option for changing file name)
page visible only for logged users(or visible[in menu] for everyone but requiring logging for seeing content)
page visible only for specified users role
- page visible only for selected users
That's all for now after 30 minutes of testing I'd be sooo happy if you will like these features and if they will come out before end of this month.