As per posted by dfyb:
will we [still] have the option to build a single .exe or identify what we want stored in .exe and what we want stored externally? i like the option to store images externally (makes replacing sprites lots easier) but i'd like to have control over what's called and what's stored within the .exe.
Game Editor has a data directory which can store all resources used by a Game Editor project. Something similar here would be useful for an option along these lines.