It could be a little early. But it's a good time to get things started. Fish Extenders are handled on Cruise Meet threads. Over on the Cruise Meet board are several threads to help people find their meet thread.
If you head over there http://www.disboards.com/forums/disney-cruise-meets.85/ You'll find a thread titled "Find your 2017 Dream Cruise Meet LINK here". Click on that and scroll down to see if your cruise has a thread started.
I took the liberty of checking - there's no meet thread for your cruise yet. You could start it by starting a thread over on the Cruise meet board, be sure to title it with the ship and dates of cruise.
Then copy the URL for that thread and put a request post on the "Find your 2017 Dream......" thread asking AquaDame to add your link to the first post. Be sure to paste the copied URL into the request post. Once the link has been added it'll be much easier for others on your cruise to find it and you all can get things going.
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