What the fuck was up with that time machine at the end of Serial Battles?

Is it really just dlc bait for a route that'll be made later?

>>529892338
it's actually hilarious how she does this face almost every time gaku says something stupid

>Kako in the Boxes route: KILL THAT PURPLE HAIRED BITCH NOW! HOW DARE YOU HURT IMA!
>Kako in Eva route: She only killed Shouma self defense, it's not fair to kill her for that.
She's the only one defending Eva as well, she only cares if Ima's the one getting hurt huh?