Ali Massoud Ansariis the Professor in Modern History with reference to the Middle East at St. Andrews University in Scotland, where he is also the founding director of the Institute for Iranian Studies... (wikipedia)
At this moment in time, the chances of any agreement are extremely small.
It was always on the cards and they can justify it on the grounds that the new president will want his own people on the ground. But it sends all the wrong signals.
The Iranians were just jumping on the bandwagon. They want to galvanize people, keep them focused on an anti-Western agenda.
The European Union door is shut and the Iranians have thrown away the key. This was a symbolic slap in the face for the Europeans.