So what are you doing with your character(s) in preparation for dragonborn?
Nothing.
I have 4 base character
'types' , but I remake them for each new dlc.
Some may see this as work. but I just don't sense work when relaxing with a video game. It's a game, nothing more. And some of the small things are nice additives when remaking characters. Some examples include my female Breton alchemist finding a child's doll in a cupboard when escaping Helgen. Another would be when my male Nord tracker renounced his wolf blood to join the Volkihar.
And when it comes to the Dragonborn dlc, I think it will be nice when my newly remade Nord tracker escapes Helgen and finds or crafts his first spear at lvl1.
I doubt I'd much enjoy discovering or crafting the new content at lvl54.
Just a thought.