I've got no idea, really. I don't think anyone else knows either. There's several possibilities, but unfortunately anyone who can speak for the validity of such concepts, are dead!
I don't necessarily believe in any god personally. Gods may or may not exist. I've got no ability to tell. If there may or may not be gods, there may or may not be an afterlife.
Personally, I do hope there is an afterlife. I hope we get to meet some of the people we knew, maybe chat with some of the people we didn't know. The chance to look in and see how the living are doing now and then may be nice.
I hope I get my own little section of afterlife to create and shape as I choose, maybe to share with a few others who wander past to visit.
There's just as good a chance, mind you, that the lights fade and that's it. That's all she wrote. Its sad from my perspective now amongst the living, but once it happens, I won't care.