Found this article to be an interesting read, as it sums up all of the aspects of the case in the Appeals Court regarding the merger of AT&T and Time Warner. I think, despite that, some facts point that DOJ has a case that nothing dramatic will happen and that there is no chance that the deal will be overturned. I Would like to get some other takes on this matter on this thread.
https://deadline.com/2018/12/att-doj-time-warner-oral-arguments-appeals-court-1202514713/