Yes, they will be. If you saw the stream, or go watch the stream; you'll see they talk about exotic weapon blue prints. Any exotics that your account has ever aquired will be available thru the blue prints. You will spend an exotic shard and glimmer to reaccuire it. Then you will have to level it up. Some of the stats will be changed because it will be a year two version. But you will be getting it again.