This is a border skirmish at best, not a war. GTA V will murder Saints Row and rightfully so. Saints Row was pretty lackluster from the beginning, the only thing that was great about it was the Mike and David Show on KBOOM from the first game, then they never brought them back.
3 was just a mess, they just took any stupid idea they thought of and flung it up against the wall. It was like what would happen if Vince McMahon made a video game based on nothing but unfiltered thoughts in his head. "GOD DAMN, LET'S KILL LUCHADORES WITH GIANT PURPLE DILDO BATS!