I know that the Klingon PvE missions had rewards added after season 2 went live. I had completed all the Klingon missions prior to the awards being added.
I remember a Dev (maybe StormShade or Rekhan--I can't remember who) saying that they were discussing whether the mission rewards would be given to players retroactively that had finished the missions before the awards were added.
Did they ever announce a decision? I did a quick search of the forums and didn't find an answer. I don't think I was granted any of the awards, so I'm assuming they haven't yet made a decision to do so.
huh, no, the shard swaord was always awarded. the potential npc was for the newly added rewards like the efficient impulse engine.
Heh. No, see you're thinking logically.
Stormshade said the response was they might add an NPC to award the shard sword. But that was it. That none of the other items would get retroactively rewarded. But that someday, maybe, they might put upgrades to them into the game.
Yeah, I realize how backwards and ... illiogical ... that response was. But ... that's what he posted.
We'll be putting in an NPC who will give players the unique item "Shard of Kahless" if they did not get the item, and have created the appropriate mission. He will give this item to each character once, so don't lose it once you get it!
As for the rest of the mission reward items, such as the efficient Impulse engines, we will not be retroactively granting those in any way. However, we will be making sure that there is another way for you to get those items, most likely through the emblem or mark stores. So, while you won't get the mission reward, you will have access to all the same rewards (or better!) through another channel.
Underlined the important bits.
Also note this post was made August 6.
It's now September 3. Almost an entire month has gone by and this NPC never got put in game.