In the months to come, your quest to become more powerful will have more avenues that lead to satisfaction. The last thing we wanted was for you to look at your favorite gun or helmet and decide that it had become obsolete. Since the reveal, we’ve read a lot of ideas for how this could have been done better. Your feedback is clear: The time you have invested in your stuff should be respected.
History does in fact, repeat itself. Get ready to regrind for those weapons you've spent the last 2 years grinding for. Unless they introduce a consumable to bring sunset weapons/armor to current power level.
Source: https://www.bungie.net/en/News/Article/12447/7_Bungie-Weekly-Update---12042014
EDIT: Yo - thanks for the silver!
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