I'd like what you mentioned Lando but I'm guessing we won't get that.
It almost looks like we get just a Dewback and nothing else, which seems odd to me.
I was thinking of making my own stowage for it too... if you buy cheap hankies at WM, you can take cheap craft paint from the dollar store and stuff (so long as it's water based), thin it with water, soak them in it, let them dry, and make different colored "tarps". Roll them and tie them up with baker string/twine and they make nice large tent/bedroll things.
I was thinking of sewing some saddlebags up too. Nothing special, but something cool enough to look realistic and bulky.