There have been a few articles over the past couple of weeks, but I'll post the most recent ones, as I think those will more easily give an idea of the current situation.
Disney and Fox have each selected their own teams of bankers who will oversee the legal details. This suggests a major move on both companies, and it seems like a deal could be reached as early as next week.
The main concern is that, while it might be nice that Marvel could get back the X-Men and the Fantastic Four, there are still more properties and franchises under Fox's control. Properties that truly are theirs first, and really have no place belonging with Disney. Touchstone Pictures has laid dormant since last year, so it could be a good place division to release Fox's films through, but it doesn't change that this is a major consolidation. AT&T's acquisition of Time Warner was expected to be cleared on the grounds that it's a vertical merger, and it's still facing legal problems. I highly doubt that a horizontal merger such as this would go any easier.
Though the one thing to keep in mind is that 21st Century Fox would be dividing its assets, with some being sold to Disney, and the rest would presumably be folded back in with News Corp.
This infographic was published in 2011, so it's horribly outdated. However, it also shows how there has been a significant change in media. While I'm glad that Fox is only given up certain assets, I understand why people are concerned of Disney becoming a growing monopoly. Disney needs to be willing to make some concessions. Under Bob Iger's time as CEO, Disney has bought Marvel and Lucasfilms, and now potentially those assets from Fox. So I have to wonder how much of this growth we can attribute to him. At least he may be stepping down in 2019.
Moving on to the AT&T-Time Warner deal…
In the aforementioned status conference, the date has been set for the trial: March 19, 2018. The current deadline for closing the deal is April 22, but the trial may not meet that deadline, so AT&T and Time Warner may need to delay their deadline yet again. I'm not sure what more there is to say on this deal that hasn't already been said. The trial is pretty much the last obstacle before the merger, so unless anything major changes, we probably can't expect much more until then.