If they do remake it, it needs to be on the computer. Best selling console RTS isn't exactly a very prestigious title. Ensamble did a terrific job with the control scheme for Halo Wars, but it could be significantly more successful on the PC.
Just to give general advice, don't try to take on too much with your first few maps. It will seem overwhelming at first but just always have a concept of the finished product in mind. Then take it one step at a time. Functional should always trump stylish.
It's always cool when limited editions come with some sort of story telling device. Halsey's journals were a really cool treat with the limited edition.
A visible 1-50 rank in each ranked playlist with a linear progression system like in Reach overall. I liked being able to aim for certain ranks to unlock things, but the challenge of obtaining a certain skill level adds to the competitive nature.
It'd be interesting if they do have a treasure hunt for the "golden tickets" to the Halo 4 beta. I just can't wait to see some full and complete gameplay.
You can create your own challenges like the daily and weekly challenges. And if you are able to complete the challenge you set in the time frame you set you'll get credits. The harder the challenge, the more credits you get.
The way the credit ban works is if you're inactive during multiple games you'll be banned from receiving credits. Occasionally a bad player may turn up a false positive for inactivity because they're not able to get kills over multiple games. So it looks like they're just AFK. I don't know how accurate the system is, and if it is able to tell the difference between an actual AFK player and a low skilled player.
Well since Multiplayer has a story now. It's highly unlikely there will be another race in Multiplayer. Spartan vs Spartan Invasion will most likely make a return.