Maybe I missed it - but what or who was supposed to be breaking out of the coccoon at the end and why were we supposed to feel sorry for it?
It was another Carla Clone.
It probably was yet another person Simmons wanted to make into Ada since Carla was gone.Is that 100%? It didn't even occur to me to think about what it was, but where does it say that it was another Carla clone? I hope that's not true because it's a bit stupid to make her cause so much chaos, then when she dies just go 'oh well, we've got another!'
Her creation obviously was Haos - the water BOW.It is not another Ada clone. Notice how Carla said my ultimate creation. Why would she create a clone of herself? Besides, Carla is Neo-Umbrella's leader, not Simmons. That place is Carla's laboratory, Simmons has nothing to do with it.
I honestly don't think it's anything significant at all, just she saw another pod and it was symbolising that it won't end unless she destroys everything.