I'm not sure if we're going to be quite ready for alpha tomorrow; the gods and buildings still need their spreadsheet values transferred to the game, and there are some various features that are not yet complete. I kind of want the base actual in-game experience (meta aspects aside) to be complete before we start alpha. But I suppose we'll see. I should think that Tuesday we'll be ready at the latest. We'll be completing most of the other features by beta; most of the missions, edicts, profile stats, multiplayer, and things of that nature. All of those things are either designed or partially implemented or both, which puts us far ahead of any alpha or beta we've ever done before, even Shattered Haven.
Once we figure out the specifics of the days, then we'll be notifying people in small batches on the days we choose them. So if we started Tuesday, then probably 5ish people would get a note every day from Tuesday through Friday or so. Roughly speaking.