I'm a Catholic.
I find end of the world talk like this to be mostly useless. You can get wrapped up in all of this prediction stuff, but it those parts of the Bible are very much filled with imagery and weren't intended on giving us a vivid glimpse into the future. It states in the Bible, even, that no one will know the time that it would occur. The purposes of these passages are for teaching us on how to live our lives. Basically, don't procrastinate your holiness just because you feel like you have time. Live every day like it was your last. That sort of thing.
But of course there are other things it teaches too, like discernment and keeping a watchful eye, so you recognize false prophets and to not live in fear, but hope and anticipation.
These kinds of things could be generally argued to be good advice for living your life worry and stress-free, as well as being morally upstanding.
As a Catholic, I don't get wrapped up in trying to predict the end of the world. The Catholic Church isn't really interested in doing that, anyway.
Speculation can be entertaining, though. Sure, I can see the "mark on the forehead" and the like being allegorical to things we see occurring today. I could read into the descriptions in Revelation and see references to things like wireless video broadcasts, electronic payment systems, GPS, RFID, and other things that, while they may have sounded supernatural many centuries ago, would be quite possible today with current technology. It makes the events seem all the more plausible, as time goes on and our capabilities due to increased technology and scientific understanding increases.
And the turmoil in the Middle East still is going on, and has no sign of subsiding. They still are fighting over the location where the Temple in the Holy Land is.
So, you could believe that there might be something there, if you're a Christian.
However, if you're a Christian like me, you won't bother yourself with trying to decode things that we can't know anyway, and try to instead focus on the here and now, on living your life with faith and love of God and fellow man.