Obviously, when Anduin is leading the Alliance charge against the Burning Legion, Special Commander Me'dan will be watching from afar, lending his magical aid... but things will turn from bad to worse as Sargeras finally reappears and starts smashing us all aside like nothing.
Me'dan will leap down onto the battlefield just as Anduin is crouching over Baine's shattered body, mourning silently with cold, hard eyes... and then they will fuse together. Me'danduin will take up Baine's weapon and solo Sargeras while we all cheer!
/endsilly
Yes, they probably are.