YOU SAID:

I'll discuss this with you further over the next few days

INTO JAPANESE

これについては、今後数日にわたって詳しく説明します

BACK INTO ENGLISH

I will elaborate on this over the next few days

INTO JAPANESE

これから数日かけて詳しく説明します

BACK INTO ENGLISH

I will explain in detail over the next few days

INTO JAPANESE

私は今後数日間にわたって詳細に説明します

BACK INTO ENGLISH

I will explain in detail over the next few days