static this as OP said not so good. Why would you need to specify no dependencies? The way it works now is not ambiguous and wouldn't conflict with the dependencies syntax.
Because if you really have no dependency, you had to specify a dummy module.
As I understand, Mr. Bracket's proposal works as this:
static this {} //full dependencies (all import statements)
static this : a, b {} //only dependent from module a and b
And I'd add
static this : void {} //no dependencies at all
