bash in-line brace expansion

Question

Does bash/readline have a binding or a function that a key combination can be binded to in order to expand in-line braces? Similar to the way M-* key combination can be used for in-line globbing expansion.

So upon performing a key-combination

$ {a..z}

will turn in place into :

$ a b c d e f g h i j k l m n o p q r s t u v w x y z

Answer 1

$ $(echo {a..z})

CTRL + ALT + e

$ a b c d e f g h i j k l m n o p q r s t u v w x y z

Note that it will expand all the expansions on the command line. No matter where the cursor is placed.
With this command (and a=this; b=that):

$ echo "$a"; $(echo {a..m}); echo "$b"

This will be expanded:

$ echo this; a b c d e f g h i j k l m ; echo that

From man bash:

shell-expand-line (M-C-e)
Expand the line as the shell does. This performs alias and history expansion as well as all of the shell word expansions. See HISTORY EXPANSION below for a description of history expansion.