One of the new features I'm positive you will like it is the ability to share referenced objects. How many time it happened that you received your drawing to realize with missing references? Too many times, I suppose. Well, in AutoCAD Civil 3D 2014, the behavior of data references for object types (except for surfaces) has changed! When you insert a reference to a data shortcut into a drawing, and then you save and close the drawing, the object is now saved in the drawing. This was not the case before, as you remember. Now, if you re-open the drawing that contains the reference, the reference is only validated and synchronized if the source object has changed.
To demonstrate this I created a brand new drawing and then referenced EG surface and a couple of alignments for other drawing. Notice them all listed in Data Shortcuts node and in Prospector.
Now, I saved it all and e-mailed this drawing to myself to be opened on other machine. Once I opened it I was able to see my 2 alignment ... and they do show up as Alignments, but you will also see that they are coming from Data Shortcuts and that I may be asked to synchronize (note that yellow exclamation point there suggesting that the object may be out of date).
The exception are, as noted before, surface objects, due to the potential size of the surfaces. Since synchronization only occurs if the source object changes, an object in a drawing that relies on a data reference is only marked as outdated when an actual change to the data has occurred.
So this way it is much easier to share your drawings with references than ever before-even when source drawing is not available. Same will happen if you open your 2014 drawing in 2013 version. Cool stuff, huh?