Everyone rooting for the europeans it seems
Because the Mongols are pretty evil in general and the europeans are defending themselves.
Well Im hoping the mongols beat the coalition, its a scenario about them after all and I do wanna see them reaching the Atlantic
Do what Alexander never could
See the "end of the world" from sea to sea
Could happen, this is the same people who had nifgard win.
Especially with how the "Tatar Yoke", while more complicated than what traditional perspectives on Russian history say about it, heavily affected Russian political and cultural development and all that, with the traditional centers of Kiev/Kyiv and Novgorod, centers of East Slavic culture in the days of the Kievan/Kyivan Rus, replaced by Moscow as the center of Russian civilization.
I have also heard a theory that if affected China.
I think this could push Christianity down a more militant path and Europe could be more xenophobic.
It could push the centre more to France.
Either Europe will fall into a civil war over papal succession, or they will have a peaceful conclave, maybe establishing it in Avignon. Either way I think the Church will be more subservient to the crown, maybe for ever, but at least for a time.
And it would probably affect Central Europe too. It would lead to significant early attempts to engage in colonization in an attempt to escape those who are trying to flee from the waves of Mongol horde rampages that are too impossible to stop beyond the west of the Rhine.
I think the crusader states sill exist at this point so they could see an influx of people.