Is there a more up to date version of the #Lightning Roadmap than this:https://www.salesforce.com/content/dam/web/en_us/www/documents/e-books/salesforce-lightning-roadmap.pdf which is a few releases old?

My specific question for today is about revenue schedule and forecasts, but in general it would be such a useful resource to have when planning my developments - e.g. "should I wait until spring, or should I start building my own solution?"