Mike Mearls spent the last several Legends and Lore talking about changes to Feats, Skills, Backgrounds and presumably, the removal of Themes from "Basic" DnD.
In my Ironcloak's game, I have access to all of the characters on my hard drive, so I copied and made changes based on what information he's given.
I removed most Feats and converted them to a +1 bonus to an Ability Score on a 1 for 1 basis. With Feats being optional, I assume the concept of Themes is most likely being jettisoned or at least moved to an option.
I added Areas of Knowledge (a +10 bonus to a Lore, generally) and Proficiencies (and left room for some of these to be added during play) to Backgrounds and excised Skills completely. I figure, if the Ability check calls for it based on Background or other circumstances, I'll give the character Advantage on the roll.
Thieves still have +Xd6 to Skills called out in their Schemes.
It's reduced the level of crunch and I like what I'm seeing. I won't be able to test it for several weeks, but I'm anxious to do so.
I realize Skills (mentioned as a hybrid of 3.X and 4E) will be an optional component, but at this point in my gaming preferences, I don't see the need for them.