This too. We could end up with Global Buddhism, albeit different regional traditions.
…honestly I like that idea better than a swap.
This
Also on the note of a "Chinese Christianity"
OTL Christianity wasnt greek or roman at all, it was a jewish religion that intended to convert non-jews too and later got coopted by said non-jews(the europeans)
Any asian equivalent wouldnt be chinese at all, let alone a synthesis of chinese religions, in the same way Christianity isnt some synthesis of Stoicism and...idk, Neoplatonism?
If this was a East-West swap(and Im hoping it isnt) the eastern equivalent would have to be something coming out of China
Some kind of salvationist cult-philosophy derived from a ethnic religion from a foreign people intended to be the final religion of said people but also to be open for everyone(aka - universalist), that then got sinicized and became the national religion of China
And we already got a religion that fills all of the above, it's Buddhism