easy. since the writing of Revelation, or before, Christians' hoped for the coming of the Lord, in their generation.
a). these martyrs, although qualifying for the heavens, following Re,20:3, will not make it the wt way though, because they did not grasp and embrace the overlapping groups generation doctrine. for 2000 years, that's what I call an overlap.
b) they believed, like Peter the first, and were awaiting an new Heavens and Earth.