So far we've had a month for each stage of FaF, and previous content rolled over into the next stage so it could be completed at a very leisurely pace.
One of the things GW2 fans were excited about before launch was the idea that the non-subscription financial model would relieve pressure to keep playing. The idea was that you don't have a need to "get your money's worth" out of your monthly payment, so you could take a break from the game when RL or fatigue sets in, and then come back and not feel you lost something.
I know a lot of people have complained that FaF seems like little content spread over too much time. Maybe having a dungeon only available for 13 days will make these people happy. Personally, I like that I could continue doing non FaF things in game, and do FaF whenever I felt like it. I'd much rather see small amounts of content added each month rather than it all give over one month and nothing for the next three.
I can think of pros and cons to this kind of limited content:
Pro: It creates some exclusivity. Only a slice of the GW2's lifetime population will experience this dungeon and have the rewards from doing it. This isn't a motivator for me, but it seems to be for other players dying to feel special and unique.
Pro: It feels (slightly) less theme parky if content is finished once and for all. "I defeated the Molten Alliance" and four years later "Oh, I did that just last week" is the reply from someone who just joined. Again, not too big a motivator for me, as I have pretty strong suspension of disbelief, but I get why people feel more immersed in one-time content.
Con: Somebody spent time creating this content, only to have it disappear after 13 days, presumably forever. It's not doing anything for those people who come to GW2 and complain that it doesn't have the quantity and variety of content like a mature MMO. After thirteen days Tyria is no larger or more diverse than it was back in April.
Con: The game starts to feel like a chore for some players. I've got a really busy couple of weeks, say, but I better squeeze in some time to get in game so I don't miss out.
What other pros and cons are there to this kind of limited content?
Would it have been better for the Molten Alliance to become a permanent part of Tyria?
Or would a longer, but still limited time (say a month like all the other phases) be better for the players?
Or is even 13 days too long, and the finale should have been shortened and made a one time event like the Mad King or Karka finale?