dunno, but it does further complicate playing CM start Mongols, expanding in the Tarim was one of the few early avenues to get enough power to survive the Uyghurs, but with the current patch you wouldnt have a CB until you got a border, now your only pathway to not dying is knocking out the tribals in Perm and playing a diplomatic game with the Uyghur sureizans and trying to take land from the other tributary khans without the Uyghurs intervening, and doing it all before the Khazars blob out of control and the Uyghur khan dying and voiding the tributary status, which opens up the Uyghurs being able to eat you if your still weaker, along with losing your Sureizans protection against the Khazars. and doing it all while keeping Tengri, since the Uyghurs are Manichean you have more diplomatic hurdles and the other Uyghur tributarys are Manichean also, which means the Uyghurs ai will prefer siding with them over you.