What would happen to the Japanese imperial family if Japan converted to Christianity ?

Question:

instead of banning Christianity in japan during the edo period, what if they converted to christianity and would the catholic hierarchy recognize or supress the venerated status of the Japanese emperor? Remember I'm asking this question from a historically point of view and not in modern context; obviousoly Christianity is legal now but during the edo period it was not so can someone provide me with a legitimate answer that accurately depicts how the church, during that respective time period, would view the emperor and would they fuse or supress traditional, Japanese beliefs as they did with the Chinese regarding ancestor veneration?

Answer:

If Japan converted to Christianity they would be blessed ~!!

I fail to understand why you would want to think in terms of yester century and speculate on something that did not and could not happen ? It seems pointless let alone try and make a conversation about it.

You would be better off thinking of what is going to happen if Iran and Israel start nuking each other.
Think in the here and now even future as that is what really counts.
If Iran nukes Israel , they will kill many muslims in the nearby countries and communities. You could speculate on that how it relates to the Koran and Islam.