Well it sounds like, based on the latest Monte Cook column, that there isn't going to be a heck of a lot *in* core 5e. Quoth the Monte:
Legends & Lore Jan 16 said:
Imagine a game where the core essence of D&D has been distilled down to a very simple but entirely playable-in-its-right game.
I read that as, you get some basic classes, some basic races, and that's about it. No warlords or dragonborn in core, but also no broken prestige classes, or fiddly skill systems either. Having said that,
Now imagine that the game offered you modular, optional add-ons that allow you to create the character you want to play while letting the Dungeon Master create the game he or she wants to run.
It also sounds like all that stuff that we're arguing about is going to be available. And,
In this game, you play what you want to play. It’s our goal to give you the tools to do so.
...
and this sounds so crazy that you probably won't believe it right now—we're designing the game so that not every player has to choose from the same set of options. Again, imagine a game where one player has a simple character sheet that has just a few things noted on it, and the player next to him has all sorts of skills, feats, and special abilities. And yet they can still play the game together and everything remains relatively balanced. Your 1E-loving friend can play in your 3E-style game and not have to deal with all the options he or she doesn't want or need. Or vice versa. It's all up to you to decide.
It sounds crazy. It sounds impossible, but that's what they're promising.
So, by the sounds of it, like it or not, Warlords will be there. And depending on your play habits and group, you might be sitting beside one (especially if you game in public / FLGSes / cons / whathaveyou.
Judging by the attitudes displayed here, it sounds like a recipe for flipped over tables and temper tantrums, but we'll see, I guess.
PS: I actually recommend
reading the whole thing before posting comments on it.
http://wizards.com/dnd/Article.aspx?x=dnd/4ll/20120116