Yeah we'll just have to wait and see what happens once chapter 26 comes out, and like you said something is bound to happen. It seems too good to be true that everything will go as smooth as planned, unless Horikoshi wants use to think something will happen when really nothing is going to happen.
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There should be several tasks in the tournament. Something will probably happen in the next five to seven chapters. Maybe we'll get our first tragic death- that would change the entire tone of the series!