Vancian? Why can't we let it go?

[Dannyalcatraz]

Well, he also said: "[W]izards have magical feats that are basically at will abilities."

And Bruce: "As Monte mentioned, you have those feats that give you at-will style attacks, and some spell or class options will give you at will kind of attacks."

From: http://www.enworld.org/forum/news/317373-seminar-transcript-class-design-assassins-wizards.html

That could be the return of Reserve feats- something I expected to show up in 4Ed.