Hi Amy, thanks for getting the conversation going. These are good questions to pose as you’re starting out — the second question is broad, while the first helps you all state the needs for your institution/region/course. The idea of a wishlist for the text reminds me that (OpenEd) week, we’re hosting an #OERWishList Twitter chat, so if you and others on your project team wanted, you could contribute to a list of OER that you’d like to see in English (or other disciplines).
It’s great that you’ve already identified 4 potential directions for your text! 
It might also be helpful to start a list of existing OER in those 4 ‘directions,’ not just to identify gaps, but also to possibly adapt/remix when creating your own resource.
