Unless some one else takes the reins. I honestly think there shouldn't be any more Halo games. The more they come out with the worst they tend to be. Its that way with most of the games any ways.
Its stratigic almost. You select a group of Marines, Warthogs, Scorpions, etc. and move them towards the enemy. It's almost like a super advanced game of Risk.
Halo Wars will be a real time strategy game set many years before Halo 1, and before the SPARTAN-II project was even started, and probably before John (Master Chief) was even born.
Yeah the expansion looks cool. To get back on subject, Halo wars looks cool but I doubt it will be as fun as halo 3 cause you could go on live and fight people. I dont think I will get it cause playing and seeing the game from a sky view doesn't seem exciting.