Oh man that Cyber-Warlock is such a badass, look at her blasting awa-I feel like the 30 seconds preceding when this picture was taken would be a very interesting story.In seriousness though, I absolutely agree that refluffing like this is great fun, and lets you play in all sorts of settings beyond the standard anachronistic fantasy medieval Europe. Maybe the DMG or some future DM book will offer an example of such fluff paradigm shifts.For my part, I would play a barbarian whose rage and natural armor class features were fluffed as neurostim implants and a nanoweave reinforced skeleton. Beast totems would be new implants that he added as he adventured, e.g. retinal implants for Eagle totem perception boost. Combine that with a monoedge axe (keen?) and we'd be good to go!