Hmmm, I kinda doubt it - from what I remember of both the anime and the light-novel endings - the anime actually followed the novels pretty well for the most part. Mind you, my memory's a little fuzzy, it's been a while since I read them - and it looks like 2 new novels were released last year.
There's a parallel series of light novels that focuses on the comedy aspect of the series.
Frankly - I'd love to see more FMP as well - although after TSR I've got my doubts that the relationships are going to change much, which is a pity - it added a lot of additional tension to the series.