If you do not perform well, you will not. Can't answer that at this time. We shouldn't even begin to talk about a sequel until we get this game done. Certainly we would like to see a sequel, but it's really way too early to talk about it. It's coordinate based now.
Characters move the equvialent of one meter per action point.
If you cannot give the details of particular weapon models, tell at least about weapon classes. For example, at least some general details of assault weapons, heavy and energy ones. I don't want to discuss weapons beyond what we have already announced. Melee and HtH combat will be very important, especially in the earlier parts of the game. However, if you stick with it, there will be good things for those that continue to improve these skills.