I was thinking of making a TL on South East Asia whose POD is late 13th century , is it possible for Europe to go in a similar way as OTL until it contacts South East Asia and East Asia?
In the 13th century, it already has. But unless your timeline involves massive changes to trade routes or religious geography, Europe will probably be minimally affected.
Butterfly fundamentalism (which I, personally, feel is the most realistic option) predicts that, no matter what you change or whether you affect the amount of transeurasian contact, Europe will most likely be very different from its OTL result.So that means I should limit or avoid substantial contact between Asia and Europe that would bring change to Europe before their OTL contact.
So that means I should limit or avoid substantial contact between Asia and Europe that would bring change to Europe before their OTL contact.