Well I can still see scope for pubs under sharia. I mean obviously the beer would have to go but darts should still be ok as long as you are throwing them at adulterers, murtadeen and people like that.
Actually, the only people effected are non-Muslims - assuming we take Iran as a model; all non-Muslims will be able to drink their booze with impunity
Although I would love to see Anjem given the role of 'protection from vice and promotion of virtue' to make sure Muslims are doing it correctly
maybe with a friendly prod from their local Anjem they might consider leaving Islam.