Hi Zen, from what I've researched, the habituated neural pathways which gave birth to the Booze Beast and ITs AV is entirely separate from the neural pathways generated by any other addiction/habit. For instance gambling, drugs, binge-eating, over-excercising, smoking each have separate neural pathways.
The Booze Beast and ITs AV don't switch to and run another addiction/habit, because the neural-wiring supports alcohol only as ITs focus. If another pre-existing or new addiction/habit arise, then yes you could make a separate BP for the different type of addiction.
For instance, many folks who stop drinking, follow the standard advice to ensure they don't become hungry and end up over-eating on the advised ice cream and chocolate etc., thereby if they continue longer term, a new addiction/habit and new neural pathways (entirely separate from the alcohol one) will be born - for which a separate BP maybe made for the 'Sweet-toothed Binging Beast'' and ITs squealing AV, for excessive sweet food.
The neural pathways do become overgrown due to non-usage/feedback from you (refusing to pick up a drink) and in my experience, the Booze Beast's AV lessens enormously as the months roll out in my new alcohol-free life and, when the AV pops up, it's easily dismissed and ignored.
I prefer to think in terms of dismissing/ignoring, because whacking/crushing sound too combatative, much like a fight/contest, when there isn't one: you've already nested the Beast and won, once you made your BP and continued to recognise, separate from and dismiss the Beast's AV.