In my best guess HF will only do what BFL did at best and offer customers a discount on a new pre-order for a new product range. Like BFL did with the Monarch for their 65nm pre-order customers. Which they first promised for delivery last October and are now say late March delivery at the earliest IIRC 
Every customer is free to make their own decisions. But given their track record, any further deal with HashFast in which you as a customer have to extend trust first would fall into the category of what Einstein called the definition of insanity.