Yes, there are many active shells still, although I'm not sure which ones are based in GMT that are still active. I found a relatively recent thread on FFXIAH tossing around some names and servers: http://www.ffxiah.com/forum/topic/30495/gmt-ls/
____________________________FFXI: Catwho on Bismarck. Screw endgame. Let's do Assaults! Captain Rank 11-4-2013
FFXIV: Taprara Rara on Balmung || Ornlona Wistuwyn on Ultros || Katarh Mest on Lamia
The official SE FFXIV forums are the Mos Eisley of the Internet.