With the help Samsung currently provides to the Enlightenment project, EFL may catch up to Qt in the future but not all EFL modules (esp. Elementary) are there yet. At least the possibility is there – such is the possibility to turn Clutter into a full-fledged toolkit.
GTK on the other hand needs a revolution. Even the Gnome community threw out the shell implemented in GTK and replaced it with a Clutter-based solution (=GNOME Shell), suggesting the revolution will not come.
Toolkits can die. Motif/Lesstif already died and that didn't leave the world with a horrible monopoly.