when V4 comes out, theres going to be like 9 different bijuus and a lot of people with kyuubi or shukaku might figure out or think that their are some bijuus they should get cause it will help them more than their current one, but then if they want any chance at those bijuus, they need to ask some akats to steal tham and that doesnt always happen T_T. could there be a way for like atleast the first 10-20days to allow you to release your summon and then it could like allow a summon to come up after you release yours.
that or i got 2 mor ideas you can seal your demon into some one else or for a wile make a place where you can give up your demons that you got pre v4 and maybe get somekind of reward that way you can get a new demon then maybe a week or 2 after v4 is up take it out
