The September newsletter has been published - https://blog.centos.org/2018/09/centos-pulse-newsletter-september-2018-1804/
You'll notice (if you make a habit of reading the newsletter) that this edition has moved from the wiki to the blog, for various reasons discussed over on the promo mailing list.
I will begin drafting the October newsletter later today. If you'd like to participate in that process, please let me know, so that we can get you added to the editors list. blog.centos.org authenticates against your existing CentOS account, so you already have an account on there, we just need to add you to the right ACL.
--Rich