In Revelation 1:1, the Greek "Tachos" does not mean soon, in terms of something that will happen tomorrow. The KJV "shortly" is more apt, and the primary definition of the word involves quickness and speed. In other words, when the apocalypse comes about, it will be sudden, things will happen quickly, in fact, the antichrist empire something quite less than 7 years duration. Or you could say the end times events will happen in rapid succession.
You may want to compare these verses, for the concept of things happening quickly when they begin:
Revelation 3
11 Behold, I come quickly: hold that fast which thou hast, that no man take thy crown. [tribulation saints will have to very much hold fast, during a time of terrors and rapid upheaval]
Revelation 11
14 The second woe is past; and, behold, the third woe cometh quickly.
Revelation 22
7 Behold, I come quickly: blessed is he that keepeth the sayings of the prophecy of this book. [who is most the audience of this statement, than those who'll live these times and need to keep the sayings of the book, avoid the mark of the beast, etc.]
12 And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be.
20 He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus.