The Conduit had a lot of hype behind it. The game's development represented a certain openness to the gaming community. High Voltage saw a problem and wanted to be the first to tackle it; be the first to make a "hardcore" Wii game and realize the dreams gamers had for first person shooters. So we watched, with baited breath as the game developed, impressed along the way by the community's opinions and input. The end result? Aside from great controls, meh.
It appears High Voltage is aware of this as they updated their blog and spent quite a bit of time talking about the Conduit 2. From what they wrote they seem to agree the The Conduit had some flaws; particularly in terms of art direction and an overall lack of gravity to the game's events.
At various points throughout the development of C1 we would discover something new about the technology, build a new graphics feature, and then have to make hard decisions as to whether or not we had time to rework existing art content to take better advantage of the latest features...The result was a game that is fun to play and is solid overall, but never quite manages to excite its audience with inspired visions of a darkly futuristic world that’s being torn apart by aliens.
The post goes on to talk about the developers commitment to not add content to the game unless they are a hundred percent in love with it. They also mention refinements the've introduced to Quantum 3 engine that will further help improve the game's art work. You can check out the rest of the post via the link below.