What i want for halo 5 is the return of the precursors and their test for humanity didect should be there as foe but the main threat be the precursors bringing back the flood mc and arbter join forces and somehow bring back cortan and it should be the 3 way battle between them and in the end didact should come to his senses and help mc and fight along side when glaxy is onc again at the same point where forerunners fired halos but the some how defeat them and suddenly something unexpected hapens and victory looks like defeat and 5 should end giving a desprat war scenerio for 6