Elijah was taken up into heaven body and soul, while still alive. Granted the method was unusual …
2 Kings 2:11 NIV
… so as far as I’m concerned, it was an assumption.
As for Protestants not accepting the Assumption, their standard reply will be “It’s not in the Bible”, as though almighty God is limited to the Bible, and can’t possibly step outside it.
Where the Bible makes that claim about itself I have no idea. What is in the Bible is that Christ founded His Church on Peter. He said so, in black and white, in the text anyway, and then called him “Blessed”.
For that matter, Moses body couldn’t be found either, so I would argue he was assumed as well. Since it was Moses and Elijah who appreared at the Transfiguration, then I think a logical argument could be made for Moses’ assumption.
Deuteronomy 34:1-6 NIV
Jude 1:9 NIV
What were they arguing about? The devil wasn’t trying to stop the archangel from assuming Moses’ body was he on some legalistic grounds, was he?
Revelation also speaks about a “Queen of Heaven” …
Revelation 12:1
It’s noteworthy that at Fatima, the most powerful revelation of Mary in modern times, the key role was played by the sun.
ewtn.com/fatima/sixth-apparition-of-our-lady.asp
Mary is the Mother of God in the form of the Mother of God the Son, she is the Queen of Heaven, and she was assumed, body and soul, into heaven.