Well I got this theory from keyblader and this might actually happen.As he said"Exactly, Mind=Soul basically, after all, humans in this game are generally composed of three things: Body, Heart, & Soul".First we had the heartless as the first threat,the nobodies as the second threat,and we have seen events leading to the sentiments.In conclusion what I'm saying is that I believe the next threat to be sentiments or another way of saying creatures with nor heart and nor body,just their minds.Terra lost his heart and body to Xehanort to form Terranort,Vanitas's body(his body was made of Ventus's darkness)and soul became one again with Ventus,and the third one is an opinion considering BBS FM hasn't been released yet but Eraquas's heart went to Terra(unkown whereabouts for the body).Nomura has mentioned about the heartless and Nobody theory(Destroy the Heartless and the Nobody to bring back the Somebody),but he hasn't talk about the Sentiment(correct me if I am wrong).The endings of each FM leads to the next(KH FM to the nobodies which goes to KH 2 and KH 2 FM to the sentiments which might lead to KH3).
Well I got this theory from keyblader and this might actually happen.As he said"Exactly, Mind=Soul basically, after all, humans in this game are generally composed of three things: Body, Heart, & Soul".First we had the heartless as the first threat,the nobodies as the second threat,and we have seen events leading to the sentiments.In conclusion what I'm saying is that I believe the next threat to be sentiments or another way of saying creatures with nor heart and nor body,just their minds.Terra lost his heart and body to Xehanort to form Terranort,Vanitas's body(his body was made of Ventus's darkness)and soul became one again with Ventus,and the third one is an opinion considering BBS FM hasn't been released yet but Eraquas's heart went to Terra(unkown whereabouts for the body).Nomura has mentioned about the heartless and Nobody theory(Destroy the Heartless and the Nobody to bring back the Somebody),but he hasn't talk about the Sentiment(correct me if I am wrong).The endings of each FM leads to the next(KH FM to the nobodies which goes to KH 2 and KH 2 FM to the sentiments which might lead to KH3).