I think this is a brilliant idea. Instead of depending only on the hive users, if the community can be visible in the searches for relevant keywords and if we are able to get some good audience to look at the website, i believe this would help us a lot in on-boarding new visitors who may not be on the hive.
I would also suggest you to take a look at the challenges run by @vempromundo, who also gets some brilliant piece of articles in his challenge. Instead of generating all the new content for SEO you can be benefited from the existing content created and curated by @vempromundo. This would be then supported by the engagement project run by @amr008 as well, as i am sure you would like the readers to be also engaged with the content that you are looking to get in google.