People who see comments on wiki pages know that users are not usually discussing the improvements of the pages. Instead, they talk about the characters in the pages (for example in the Leopold Slikk article on the AGK Wiki, people say something like "POW POW POW!!!" or "[Somebody] is awesome!")
So, I suggest creating another portal for discussing pages improvements, while keeping the comments system. And I'm not using that old talk page system that requires manual signing and complexity. Some time ago I discovered a new feature in Wikipedia called Flow. I recently used it once on MediaWiki, and it's quite straight forward and useful.
Should we enable Flow in Wikia?
We just need to enable the Message wall/Forum comment system on article talk pages and make the new talk pages coexist with the existing article comments feature. Flow is not needed.