A few days ago there was a worrying report that datamined files had been found that stated Bungie were going to be selling consumable items in Destiny as part of their new micro-transaction currency, Silver. This would have gone back on their promise about not influencing the main game and only selling cosmetics, so there were concerns.
Bungie have come out now in their Weekly Update post to explain the situation. They say that the files referred to scrapped plans that they decided they didn't have a place in the game:
We're not doing that. The files in question were actually first uncovered some time ago, well before the launch of Eververse Trading Company. They weren't ever intended to be sold in exchange for Silver. What you're seeing are remnant files for Three of Coins or Moldering Shard like items that would have been available from Xûr. Ultimately, the team decided that they didn't have a place in the game, and cut them from the experience. You're seeing some dust and echoes from the cutting room floor.
Files that get datamined aren't official sources of news, though we understand why they are intriguing
Hopefully that puts this to bed at least for a little bit. I've put my concerns out there about this and I hope Destiny remains as micro-Transaction free as possible. I'll take this explination at face value for now.