The fallback mode, which is what the default Trisquel DE is based upon, is to
disappear in the next GNOME releases:
https://live.gnome.org/ThreePointSeven/Features/DropOrFixFallbackMode
https://mail.gnome.org/archives/release-team/2012-November/msg00009.html
http://distrowatch.com/weekly.php?issue=20121112
So what do you think Trisquel should plan on using as default desktop in
future releases?
XFCE?
Unity?
KDE?
GNOME-shell?
MATE?
Cinnamon?
Other?...
I didn't mention LXDE since we already have Trisquel-Mini and there's no
problem with that.