Lucky Star’s oft forgotten original manga version has featured an event sure to evoke complex emotions in followers of Konata and the gang; they have graduated from high school without issue. You may breathe a sigh of relief to hear that the manga seems set to continue, although doubtless this brief sigh will be terminated by a gasp of realisation that this means no more sailor uniforms.
Translated from Comptiq (original below).
It is not clear how the story is set to proceed, or how long for, but a Genshiken style termination seems out of the question.
There is some unkind speculation that nobody will want to read it after they stop wearing their sailor uniforms?
Source is 2ch, the thread in question you can see at Syu’s.