Board Thread:General Discussion/@comment-24440536-20150502203833/@comment-1824272-20150502205245

They've put the following disclaimer on all of the Ranking Tournaments since around August or September (so it's safe to assume that it applies for every item in the game):

"There is a chance that rewards may be obtainable in future events."

We have no idea what these future events could be, and remember that it says "there is a chance". It's basically just a safety net for them to use in case they do want to bring some of the rewards back, telling us, "Hey, we might bring this stuff back even if you don't get it right now. It's not a guarantee, but we'll see."

tl;dr Yes, it's true, but we have no details on how they'll do it yet.