My team recently went through the process of laying out a nearly one year plan for our work. We separated the plan into three phases. Each phase will include a couple of launches.I wonder, from an agile point of you, is this wrong? I think it's not a bad idea, because we haven't spent too much time on designing anything but the first few steps. It's possible for us to change direction. At the same time it's nice that we don't act with only the near term in sight.
Long term planning and agile?
project management;agile
Having a vision of where the project is to go is a Good ThingTM.  Believing that that is precisely what will happen is not.In preparing for battle I have always found that plans are useless, but planning is indispensable.-- Dwight D. Eisenhower The approach Agile methodologies take is to break things down into digestible pieces, and re-adjust the vision after each piece has been digested.That means that your ending point in a year from now is not going to be precisely what you now think it is.  However, you should have tackled all the high value items on your list and have kept your stakeholders engaged and happy as you move forward.