Really good question. He says they are like the angels. I think that it is speaking of the first resurrection saints and the sheep/righteous saints of the second resurrection. Otherwise why the reference to being accounted worthy. We know not yet what we shall be but we know that when He appears we shall be like Him for we shall see Him as he is(1 Jn 3:2). There will be varying glories in the resurrection. Stars, planets, moons(1 Cor 15:39-41). There were those who refused deliverance from death that they might receive a better resurrection(Heb. 11:35). So apparently there will be differences, but when we receive the adoption, the redemption of our bodies(Rom 8:23), we will be as the angels in that in the glory of our resurrected bodies will not need the functions related to procreation. I think 1 Cor 15, which deals with the order of the resurrection also contains the best explanation of the state of the resurrected, and I think it applies to all the resurrected, reconciled and restored thruoughout the restitution of all things.
1Co 15:35-53 But some man will say, How are the dead raised up? and with what body do they come? (36) Thou fool, that which thou sowest is not quickened, except it die: (37) And that which thou sowest, thou sowest not that body that shall be, but bare grain, it may chance of wheat, or of some other grain: (38) But God giveth it a body as it hath pleased him, and to every seed his own body. (39) All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes, and another of birds. (40) There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another. (41) There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory. (42) So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption: (43) It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power: (44) It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body. (45) And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit. (46) Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual. (47) The first man is of the earth, earthy: the second man is the Lord from heaven. (48) As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly. (49) And as we have borne the image of the earthy, we shall also bear the image of the heavenly. (50) Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption. (51) Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, (52) In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. (53) For this corruptible must put on incorruption, and this mortal must put on immortality.
The glory of the first resurrection(Rev 20:6) saints may be different than that of those vindicated by the secrets of their hearts at the second resurrection(Rev 20:5 & Rom 2:12-15), which may be different again from those who come through the fire(1 Cor 3:11-15).