Some people will absolutely chose their death date if they are given the option. This allows people to stop suffering before natural progression catches up to them. Quite frankly, I think it's only fair. People won't chose painful options but when they're given pain free options the choice becomes clear.
I think that assisted suicide should be become more common for the terminally ill. There comes a time for many people when continued life is just unending suffering. The last week of a terminal illness will cost hundreds of thousands of dollars and provide no comfort to the patient. In these cases ending one's life would be the best treatment.
While a person who is suffering from depression needs treatment, not suicide assistance, there are some patients who are terminally ill and who know it. A competent adult should be allowed to die in dignity, before she becomes helpless and unable to communicate. She should have the opportunity to get her affairs in order and make a calm exit at a time when her family is emotionally prepared and ready.
No i do not think that this will be the future for dying patients. I mean I can see some benefits to choosing the exact day that you will die but for the most part I think that the majority of patients will want to hang on as long as possible.