I can def see this being a good idea. Because right now we'd only need two subboards for Gone and Hunger which wouldnt be a big deal. And adding a board a year would probably be justified as Gone grows in popularity like im sure it will.
As the only active KA/MG book series in existence we should def promote discussion of it lol especially if people start searching for a Gone forum and ours is at the top, it will bring more people to RAF and hopefully more people to Animorphs
I dont personally use the Everworld/Remnants boards cause i havent exactly gotten around to reading them...but I think the amount of discussion on them could be limited to one thread each in the "Other books" thread without anyone minding