Hello,
Most ninjas go through cycles where they're available for a while then not available for a while. This ninja will most likely be available again eventually. Thanks!

Event information is only given out a few hours before the events are released. So a "vague answer" is, unfortunately, the most you will ever be given in terms of future information. Yes, he will almost certainly return in the future, because there has never been any precedent for a ninja being completely retired from the redemption lineup. But if you want a complete certainty that he will return, I'm sorry, but no one can give you that. Events are never given out in advance. Everyone knows that.

As you've stated that this thread is for a complaint and not a bug or suggestion, I am now closing it down.

Have a wonderful day!