What would happen to Kaitlin 2 if Kaitlin died?
 

I was thinking of something interesting. If Kaitlin died during battle what would happen to Kaitlin 2 ( assuming they already split before Kaitlin died)?Would she be able to power down and just live Kaitlin 1's life? Would she have all of Kaitlin's memories or just the ones she had prior to Grimlord creating her?

That's a good question.

If she could exist without Kaitlin then yes, if not I think she would die with Kaitlin.