I wouldn't be surprised if someone at Ducati is messing around with electric bikes, but I doubt we will see anything electric with a Ducati label on it anytime in the foreseeable future. Ducati has their image which is just about as rigid as Harley - can you imagine an electric Harley? (except for the ones aimed at 5 year olds)
Have to admit the Paso is probably the best Duc ever if you want to hide a bunch of batteries.