BundleID & an app record on iTunes connect

We're making an iOS game. The BundleID is linked to the individual developer's license of our main developer, but we're going to switch it to a company developer license later. The game is working on a single device, and we're about to start programming the code to make it work with GameCenter turn-based multiplayer. To do this we must make an app record on iTunes connect, but it's asking us for a lot of information, like price-point, how the name is going to be capitalized, and so on, which we're not sure about yet. Some aspects of the game are still up in the air, and we don't want to make any actions that can't be undone, or might lead to problems later on. Do we have to worry about the details to be entered into the app record, or can it all be changed later without much trouble? Also, if we're having a lot of trouble later, can we just delete the app record and start over with a new one?