Not an angel. Not a spirit. He was seen going bodily - and he was not the 1st man to go to heaven bodily. Why do you have to go beyond what Scripture says and speculate about such things?
The Bible states he was raised a spirit, therefore returned as such. May I ask what you believe the meaning of this passage is Wrangler:
(1 Corinthians 15:45-51) . . .So it is written: “The first man Adam became a living person.” The last Adam became a life-giving spirit. 46 However, what is spiritual is not first. What is physical is first, and afterward what is spiritual. 47 The first man is from the earth and made of dust; the second man is from heaven. 48 Like the one made of dust, so too are those made of dust; and like the heavenly one, so too are those who are heavenly. 49 And just as we have borne the image of the one made of dust, we will bear also the image of the heavenly one. 50 But I tell you this, brothers, that flesh and blood cannot inherit God’s Kingdom, nor does corruption inherit incorruption. 51 Look! I tell you a sacred secret: We will not all fall asleep in death, but we will all be changed,