From their website:
Privateer Press is pleased to announce that in celebration of the Voltron: Defender of the Universe battle miniatures game it will be releasing a limited edition Mega Lo-Tron figure exclusively at San Diego Comic Con 2010 July 22 – 25, 2010.
The figure, an alternate form of the Lo-Tron figure that comes with the game, offers players a different option to use against the Voltron force. With the ability to deal even more damage to his enemies, Mega Lo-Tron will stop at nothing in his quest for galactic control.
The figure will retail for $14.99 and will be available from the Privateer Press both at SDCC while supplies last.