Facebook mobile apps will get new look. The most obvious change seems to take place in the remarks, which will look much like an ongoing debate.
The new look is in line with the recent tests it performs on the Facebook UI, which show the comments as group conversations.
The idea is obviously to make comments a little more readable and to see more easily who is responding directly to another person.
Facebook may also be trying to make conversations with strangers a little friendlier. The similarity of the context of the text with those from a application messaging can make you feel like you're having a personal conversation with participants, rather than responding to random on-line thread.
Less obvious will be the changes in News Feed.
Facebook will use a brighter shade of blue for a somewhat increased overall color contrast that will make the texts more legible.
Link previews are slightly larger (they will take up the full width of your screen) and the Like, Comment, and Share buttons will be somewhat larger.
As the official announcement for the upcoming changes of the largest social network seems, there will also be many other small tweaks such as a more obvious one button "back" but also the ability to see where a link will take you before clicking on it.
Facebook will release the new UI design "in the coming weeks."