User blog comment:Gundam Legilis/Destiny In Depth/@comment-4010415-20160111012847/@comment-5426254-20160111020637

If "the end" was that soon, then there was really no point in saying it when they could achieve the same result just by saying nothing and moving ahead with the plan.

By saying that he needs to lay low until the end, the viewer is led to believe that it will take the end of the tournament or when the Grimm finally start invading that it will be safe for Mercury to move out of hiding, period. Even if its under a maintenance hall, it is too risky for Mercury in this timeframe to potentially jeopardize the plan, especially when the two of them are under an arena full of the same millions of people who saw his "injury".