Fully Turkified Persia

So, here some ideas: The byzzies wins at Manzikert, and the Seljuks for some reason do not make more incursions on Anatolia. Then the Mongols invade but the Seljuks succesfully hold them

could this result in the complete Turkification of Persia, and Persia turn into a analogue of modern day anatolia?
 
Maybe, do please remember that such a state would still use Arabic as its de jure official language. With the Mongols repelled, the Abbasids will still have by far the largest influence on Islamic states in the current political landscape. So it is not out of the possibility for simply the Saljuqs using Arabic mediate between their Iranian subjects and thus remove the issue of enforcing Turkish upon a vast Iranian majority.
 
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