You're surely not the only one waiting for the new Fujimi Murcielago! But sorry, no info....
I have to say I disagree with you concerning the Carrera GT: the pics avaible on the Tamiya site just show a prototyp, unpainted, and glued together to test fit, and tease!... and it already looks far better than many other company's kits! And the chassis sprue is as impressive as the Enzo one! The real car is a better piece of the art than the Enzo, the Tamiya kit will be the same!
Compared to this excellence, I wonder how the Murci will look like!... But if it has an engine, or openable doors, I'll forgive any shortcoming!
I hope the front and rear grids will be rendered well! That's quite a challenge for a manufacturer, I feel.