By the power of truth, I, while living, have conquered the universe.
Posted by: DecepticonCobra
You ever wonder why he is on the Memorial Statue? In the canon, a similar Memorial Statue resides in a rebuilt New Alexandria. He's on it.
No he isn't. Not only were Spartan-IIIs not public knowledge, they're never marked KIA. That isn't Jun on the memorial.
However, Frankie said they don't want to continue Jun's story, so since he's isn't with Halsey when Red Team and John meet up with her under CASTLE he is dead.