I'd say that if they say your car has a good chance of being a facelift and you haven't got a confirmed order yet that there is going to be a gap for retooling... simple as.
I'd find it unlikely that they'd have a 6 month production stoppage on a model, but stranger things have happened before.
You won't know until you get an order number and even then you won't know until the factory actually plan the production, which doesn't happen until a few weeks before they actually build it.