I was thinking the other day about the genre(?) of Alternate universe used in fanfiction and came up with the idea of making a series with a cast of characters where each book is a different circumstance. Eg one book could be a urban fantasy, another high school etc. etc. with each book having the same characters which react differently and experience different character developments depending on the situation. Is this a good idea or is it just a stupid idea thought up by someone who reads way too much fanfiction?