This shouldn't have any impact on your day-to-day use of The Hub. You may, however, need to re-enter any saved credentials to login from this new page. If you want to use an Extreme Networks account and don't currently have one, there will be a process to request a new account on that login page. I'll update this post to include more information.
If you experience any problems logging in or if you notice your account doesn't look the same after this change is implemented, please email firstname.lastname@example.org with your username and a description of the issue so that we can investigate.
Hopefully this modification is seamless, but I felt it was important to notify everyone of this upcoming change.