I got busy yesterday, so I didn't have time nor energy to answer you in details...
I won't do new menus for TE2013, but TE4 (and TEM2) will get new menus for sure.
If possible, I'd like to see your TE4 logo without waves on its circle (ie: it should be a perfect, or almost perfect, circle) ; it still could have waves in its texture within the circle, though.
TE2013 green version logo works well color wise, I think.
Your menu style looks clean, but as you said, it looks too much like Metro, which is an OS style, and doesn't fit much for a game, I think (although opinions might diverge on this
I tried to look what I have in mind for TEM2/TE4, but could find any close match... I guess it would be a mix of that :
& that :
with current TE menus ; ie: style heavily icon based, unlike most game menus nowadays which are text based. Jury is still out, though, so I may change my mind later on... Nigogu
TE Menu system allows for some light skinning, but nothing too deep, and there are 222 icons (plus a few buttons & backgrounds), so creating a new skin for it is not a piece of cake...