Where does it say "immediately"? I can find no time frame given between chapter three and chapter four. If you do would you please point it out to me?
>>And since the bible does not explicitly SAY that He acted on it between the end of 3 and the beginning of 4, I can find no reason to speculate on such an event.<<
The churches had already been told how those who were faithful and true would "escape the wrath to come". Why would John have to repeat it? The seven churches were simply being warned to get back to their "first love". They knew the consequences.
>>And just because something is not “seen immediately” in following verses does not mean it is not there.<<
Jesus told the church in Philadelphia towards the end of chapter 3.
Revelation 3:10 Since you have kept my command to endure patiently, I will also keep you from the hour of trial that is going to come on the whole world to test the inhabitants of the earth.
The rapture of the faithful must happen before the seven year tribulation.
Regarding your entire post, I think you are stuffing way too much information between the lines. However, there is one line that offers a chink in my position. It is this one:
Revelation 3:10 Since you have kept my command to endure patiently, I will also keep you from the hour of trial that is going to come on the whole world to test the inhabitants of the earth.
However, it doesn’t go into detail about how they will be kept from it. And one could question what that hour of trial is to “test” the world’s inhabitants that they will be kept from.
This is why ALL of our positions are a bit of a clutching at the scriptures that support our particular viewpoint. It is why “ever virgin Mary” believing Catholics insiste upon translating the word “brothers” everywhere the bible refers to Jesus’ “brothers” to mean “cousins”. And that is, technically, one meaning of the word translated “brothers”, but it grossly strains the context.