It's a little early to tell but yes, the concept (storyline) seems pretty interesting.
THQ needed a title like this to comeback in the FPS genre. I played Frontline: Fuel of War (never really played Multiplayer) and the game wasn't that great (on the PC, it really felt like a port from consoles to PC). However, the game had great potential with all the vehicles and gadgets. Gameplay mechanics were the best of that game, yet the worse. Sometimes it worked really well but failed certain times.
PC Port: Apparently, the studio is outsourcing their porting to the PC with the same company that ported games like Bioshock. It also looks like there will be exclusive content for the PC version (multiplayer content).
That said, Homefront should be a great improvement from Frontline and from what I've seen, the game looks great. I look forward to seeing more about this game.