You can heal, Disc or Holy.
It is still a preference call.

Everyone has new talents.
Rotations are a tad different, depending on the class.

Glyphs are different, in that once you learn them, you know them forever.
And there is vendor sold dust, to un-scribe a glyph which can then be replaced by any glyph you have learnt.
They are now Prime (3), Major (3) and Minor (3).