I'm not sure they could actually make a sequel to LCT.
But I suppose that the system wasn't too bad...
In reality, I wouldn't mind seeing another one. The original was pretty neat. The system works, the difficulty was just right, and the game held my attention.
The things I feel it lacked, however, were:
Variety, length (too few levels), and individuality.
The game was just a generic "shoot the targets" with a little bit of other things mixed in. If they had changed it up a bit, I would've enjoyed it MUCH more.
To be honest, I don't think they're making another one, though. The only reason this game exists is to help boost the sales of the Wii Zapper.