Duran, I cannot agree with your mixing and matching the scriptures of Revelation. I see the history of God's people during the tribulation somewhat differently. For me the beasts represent governing entities, same as in Daniel.
10 they are also seven kings, five of whom have fallen, one is, the other has not yet come, and when he does come he must remain only a little while.
11 As for the beast that was and is not, it is an eighth but it belongs to the seven, and it goes to destruction.
12 And the ten horns that you saw are ten kings who have not yet received royal power, but they are to receive authority as kings for one hour, together with the beast.
13 These are of one mind, and they hand over their power and authority to the beast. (Rev. 17:10-13 ESV)
And for the life of me I cannot discover the "judgement" of the 8th king. Perhaps you can enlighten us as to the scripture you are referring to. I am more interested in God's judgment against His enemies, e.g., the beasts and Babylon the Great (cf. Rev. 17:14; 19:20). In any case, Babylon is devastated by the horns, i.e., the ten kings (17:12, 16). God will judge the remainder of Satan's cohorts by means of His Son, not the 8th king (19:11-13). I do agree, that eventually there will only be two groups left, those for God and those against. The latter will receive an adverse judgment. They will be destroyed (19:15).