Also, the crux of the problem remains as ElBaradei goes on to elaborate (italics mine:

Naturally, Iran´s active cooperation and transparency is the key to full and timely implementation of the work plan. If the Agency were able to provide credible assurance about the peaceful nature of Iran´s past and current nuclear programme, this would go a long way towards building confidence about Iran´s nuclear programme, and could create the conditions for a comprehensive and durable solution.

Let's hope for the best.