Going through the released notes, I bet 1 $ that the new "currency" to use at vendors will be actual money, the micro transactions are in motion...that is the next big patch from destiny....no real voice chat, in game clan options or matchmaking....just squeezing money out of you....
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"New economies for obtaining upgrade materials" means making upgrade materials drop in new ways. I'm just not sure if the lower materials like spiritbloom are what they are talking about.