Oh, I agree. The Bible plainly teaches that history is marching on to the second coming. But it could be another 100 or 1000 or even 10,000 years until that happens.
There is nothing definite to link "this generation" to the return of Christ. It's all speculation. See Walvoord as an example.
Or today. We don't know. Nobody knows.
Here is John MacArthur's put: http://www.biblebb.com/files/MAC/sg2369.htm