It is still not clear if the new Single Instance Application Framework that is being developed by Vytas will fit Gedit needs. For the moment, Paolo Borelli suggests to wait:
“I guess at the moment we should still wait and see what comes out of
Vytas work and where in the stack (glib/gtk/gnome) is going to be put.”
I think he is right, let’s wait for it and evaluate how it fits Gedit at that moment.