The BBC is reporting on a meeting that is about to take place, for the specific purpose of ironing out details for a future meeting. This, within itself, is a telling sign that this is not going to be an easy thing to accomplish.
The meeting may happen. But the two main questions that surround all of this are, what are the objectives and how much will be accomplished towards meeting them?
After all, there is no one powerful papal office comparable, in Islam. Who is going to speak for the Muslims? Likewise, there are many that may not accept the pope's positions within Christendom, and his own church as well. Is he speaking for them?
I say let them talk if they want. But the Vatican must be prepared to accept the fact that the likelihood of any real success is quite low, for the reasons I state.