Well .. I've read and studied Eze 38-39 since 1985.
I believe the next big event will be Isaiah 17:1 - The burden of Damascus. It has been taken away from being a city, it has become a ruinous heap. Only one thing could cause that much damage - a nuclear explosion. I believe it is this event which will trigger Eze 38-39.
I rarely read fiction, but this might be an interesting read.
I've read this book and also the two previous books by Joel Rosenberg, "The Last Jihad" and "The End of Days", and all three are excellent. Very prescient, in view of the fact that certain incidents in the first two books were written a year to a year and a half before hand.