The Bible says " no one knows the day or the hour of Christ's return."Another truth beside that is it is getting closer. We never know when He will return, it could be today, or tomorrow or next week or next month or before the 2016 year is over.Or it could be still five, ten, twenty or more years from now.Nevertheless He is coming as a thief in the night the Bible says.
By the way , how do we prepare for His return? by reading His words and following or obeying His commandments. I believe I have been waiting for His return since the 80's, and even if He did not come yet, my blessed hope keeps growing. The Bible says " Occupy till He come."
I hope you are waiting for Him too.If you have not accepted Him as your Lord and Savior, now is the time. Do not delay or put it off any longer. If you make your decision today, pray also for a church or mature Christians who will help you grow.