Personalize team sites in Office 365 and amplify teamwork using MS Teams and Office 365 Groups

Mark-Kashman I came back to this to see what the plans were and I have a specific question about existing SP sites being upgraded/connected to Groups. Let's say I have a team site that's well set up, organized, and very graphic-heavy. Think lots of pages, each with lots of images that link to libraries and folders. (Makes navigation easier for the very many users in the site.) This uses content editor web parts to pull off. So, no modern aspects other than the libraries/lists.

Am I correct in reading your post that this site will not be forced to be a modern site, and these classic pages can remain classic and not be "upgraded"? The benefits of connecting to a Group will give folks a great way to communicate in Teams (or Outlook, but thinking specifically about Teams), but that benefit likely won't overcome the loss if the site were automatically "upgraded" to a type that doesn't support such an open page layout/design process (or needs to be rebuilt from scratch).

Basically, I'm looking to have my cake and eat it too. Will that be possible? :)

Also, any update on the timing of this rolling out, or is your immediate thought, "Just wait a week"?