I'm not so sure. People have been speculating about it for 2000 years. They were no doubt saying similar things about the "signs of the times" in the middle ages.
Just read through 1 Thessalonians:
"You know very well the day of the Lord will come like a thief in the night.
While people are saying "peace and safety", destruction will come on them suddenly..."
It then goes on to say how if we belong to the day, that is to live as we are instructed by the Bible, we will not be suprised.
So, for me, stop worrying. Live as God wants you too. If he comes again in our lifetime, bonus. If not, it matters not a jot. You're not going to make it any better for yourself poring through Revelation trying to pin-point the exact date and signs. Just live as Christ instructed, and you'll be sorted.
That's my opinion anyways,
God Bless
Nick