This is from the October 5th News when they announced the silver. "We’re bringing Tess back. We’ve already said that there’s more to discover in The Taken King – and there is – but beyond the content available in the launch window of The Taken King, our goal is to continue creating experiences that will keep the game fresh, fun, and surprising. Today, we wanted to share with you a new element we’re incorporating into Year Two of Destiny. This coming Tuesday, October 13th, Tess Everis will return to The Tower with a new look, a new storefront, and some new items to sell, courtesy of Eververse Trading Company. Initially, Tess will offer eighteen brand new emotes. Like the trio of emotes offered via The Taken King Collector’s Edition, these emotes are completely optional, and won’t impact the action game in any way. To acquire these items, you’ll first need to pick up some “Silver,” a new in-game currency that will be available for purchase through the store associated with your console. Images and descriptions for each available emote, along with pricing information for Silver will be made available Tuesday, October 13th, alongside the launch of the in-game storefront right here on Bungie.net as soon as the content is live. If you’re not interested in what Tess has to offer, you won’t ever be forced to pluck an item off of her shelf. You’ll still receive updates to the game, and you won’t lose a Crucible encounter or fail to clear a Raid because you didn’t have the right Eververse Trading Company emote equipped. Our plan is to use these new items to bolster the service provided by our live team for another full year, as they grow and create more robust and engaging events that we’ll announce later this year. It has been, and continues to be, our goal to deliver updates to the game. Going forward, our live team is also looking to grow beyond vital updates and improvements to focus on world events, experiences, and feature requests. If you’re still skeptical, you can log in next week and take a look for yourself. We’ll be dropping some free Silver into your account so you can purchase an emote or two and become legend through the power of dance. As always, we’ll be watching and listening to your feedback, and we’ll talk more soon. See you in The Tower." Don't see anywhere about future free DLC up till Destiny 2. Purpose of purchasing silver was to get live events for the year.