"Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil." -- Matthew 5:17
Where is it inconsistent to say that Jesus fulfilled much of what the prophets had to say during his first coming; but, at his Second coming will fulfill the remainder? Nothing is Scripture says that Jesus has already fulfilled every single prophecy relating to Him in scripture. It says that he will. Even the Preterists don’t believe that all prophecy was fulfilled during His first coming. They believe that at least the destruction of Jerusalem some 40 years after his resurrection was in fulfillment to prophecy as well. We just happen to believe that He will fulfill all of the Old Testament and Revelation prophecies as well.