There is some evidence of this since part of the Book is written in Hebrew and other parts in Aramaic.
Here is a part of a discussion found at http://www.spiritandtruth.org/teaching/ ... slides.pdf
Take it at for what it is worth. I can't and won't speak to the accuracy of the info on the site. But it is interesting none the less
If the chapters were to be arranged in chronological order while
noting the primary language of their composition (H = Hebrew, A = Aramaic) they
would run as follows: 1H, 2A, 3A, 4A, 7A, 8H, 5A, 6A, 9H, 10H, 11H, 12H. In
chronological order, chapters 7 (the first year of Belshazzar) and 8 (the third year of
Belshazzar) would appear between chapters 4 (Nebuchadnezzar’s reign) and 5 (the
last year of Belshazzar). The question naturally arises as to why the presentation order
differs from the chronological order? From the perspective of language, the Hebrew of
chapter 8 would have divided the Aramaic section if it were not relocated. Since
chapter 8 expands upon information provided within chapter 7, it may be that both
chapters 7 and 8 were relocated beyond chapter 6 so as to maintain the Aramaic
section undivided. Another factor may be the previously-mentioned distinction between
historical narration vs. visions and their exposition. Chapters 7 and 8 both concern
revelation primarily given to Daniel. By positioning this material following chapter 6, the
emphasis of the first part of the book on historical narration and the second part of the
book on visions is maintained without fragmentation.