Can I throw a new spanner in the works, let's skip over the drive need to power this FTL device, this skip the vast amount of energy that would more than likely be needed and lets look at a more fundamental aspect.
May I link you to Red Dwarf for the introduction to my statement.
http://www.youtube.com/watch?v=RSt1Kshj1QA
Ineffect if you are travelling at lightspeed you need to either have point to point travel with no deviation, that in effect would require highly accurate stellar maps and confirmation that their is no stellar objects in the way that could cause damage. We aren't talking planets here, stellar dust would do a vast amount of damage to a spacecraft if it hit it at lightspeed.
Failing that you would need to create a computer system that could scan process and then relay commands to it's control thrusters faster than the speed of light, you not only have to solve the issue of making the vessel travel at faster than light speed you have to also solve the issue of making it capable of computing navigation information at a speed faster than light, in effect doing things before they happen.
So will true FTL ever be a reality, no, a very definite NO, will ftl via space folding or some other form of sub space trickery be possible, hmm maybe.