I'd like to see Jira finally have the word processor that we have in Confluence.
When you are a customer who uses Confluence & Jira in tandem, it seems strange not to have the wiki word processor in Jira..
You already support Wiki-markup in Jira, and I'm sure that integrating it WYSIWYG is not so hard. yes, it is a major change, but a good one...
It would be an option to use the wiki; not everybody wants it, I'm sure.