Killing Pike won't enhance the plot one bit.
It would be a pointless death just because the writers want some...thing dramatic and sad and to push the hero into action.
If it's something dramatic and sad that pushed the hero into action, then it wouldn't be pointless.
3somes with Cat women? Well they did steal the poster idea may as well steal the characters too.
They might have stolen it from another franchise. Star... Track? Something like that.