Jason Yeung is one of the lead developers for Disney's Pirates of the Caribbean Online. During a recent Q&A he dishes out some very interesting info on what's coming for this free-to-play piratey good time.
Both Davy Jones and the Kraken will eventually be included in the game, but the when remains locked up as tight as Jones' fabled locker however. Adding pets (such as a parrot, which every pirate must have) is something they want to do in future expansions, but they're more focused on creating end-game content for their hardcore players, which is a sign that they do listen to feedback. In fact, their biggest challenge at the moment is rolling out new content fast enough.
If you've never given PotCO a try you really have nothing to lose -- it's free-to-play. If you like what you see, and over the last few months a great deal of new content has been added, a monthly fee will get you unlimited access to all the game's content (like the poker games).