YOU SAID:
if this becomes that in the future then why is it the past?
INTO JAPANESE
これが将来的にそれになるとしたら、なぜ過去なのでしょうか?
BACK INTO ENGLISH
If this is going to happen in the future, why is it in the past?
INTO JAPANESE
これが将来起こるとしたら、なぜ過去にあるのでしょうか?
BACK INTO ENGLISH
If this happens in the future, why is it in the past?
INTO JAPANESE
今後こうなるのであれば、なぜ過去にあるのか。
BACK INTO ENGLISH
If this happens in the future, why is it in the past?
That didn't even make that much sense in English.