Yes, Dan Carlin's Series on the Mongols (Wrath of the Khans) discusses what-ifs at depth regarding the Baghdad of 1258. The destruction, in his estimation (iirc), set back the greater region by at least 200 years. It was absolutely devastating.
I am a fan of Dan Carlin but people shoud not use him as a source for arguments. He has a flair for the dramatic and the grand story of the decline of islam is to good a story not to tell it.
http://www.dancarlin.com/product-tag/mongols/ (free at the moment apparently, good listen)