Because many of us are going to want rather advanced customization in Halo 4. Unless we’re going to have the option to play helmetless like in ODST, customization as complex as Soul Calibur V or Saints Row 3 probably won’t happen (we can hope, though). But, along with new armor, 343i can certainly bring back old variants (Rogue, 3-era Recon, etc… Maybe even HAYABUSA and Katana) to please old fans, and perhaps, to attract fans of other shooters, design armor similar in appearance to Gears from Gears of War, or the Brotherhood of Steel from Fallout, among other things (nothing that would affect gameplay, of course).
Thoughts?