I realize that my first answer was preventing the fall of an empire instead of resurrecting it, so at the risk of massively oversimplifying things have Adad-nirari (OTL the Second) of Assyria lose his power struggle for the throne, butterflying the rise of the Neo-Assyrian Empire. This gives the Neo-Hittite states of Anatolia breathing room and one could very well conquer the others and reestablish the Hittite Empire.
I, for one, welcome our new Piłsudski overlord
You misspelled "hell"
I, for one, welcome our new Piłsudski overlord