Many Christians think so. The Gospel Coalition (whose council members include John Piper, D.A. Carson, Tim Keller and Al Mohler) boldly cites George Eldon Ladd's 1959 book The Gospel of the Kingdom to make that claim. "When the Church has finished its task of evangelizing the world, Christ will come again. The Word of God says it." The Issachar Initiative backed by some of the largest financial gatekeepers in evangelical America (National Christian Foundation, Maclellan Foundation, Green Family, etc.) use the same logic to encourage reaching the unreached. As their Tweet below indicates, "We can choose to speed up Jesus's return."
But why do so many Christians think Matthew 24:14 explains the prerequisite for Jesus' return when the verse doesn't even talk about him? We have to explore the context to discover why, and to discover why they are all wrong.