Wouldn't it be cool if a segment of Kingdom Hearts 3 included an intense, heated fight between Sora and Riku like KH1 had? If so, it'd also be their 3rd battle, with the 1st and 2nd near the end of KH1. Riku would get strongly possessed by Master Xehanort and he would go after Sora and his friends, including Kairi. Wouldn't it be epic, as soon as the battle starts, a new remaster of Forze Del Male plays and nostalgic images of that treacherous battle from the first game starts flashing in your head?
Would you be excited, or scared? I mean, Kingdom Hearts got kinda difficult over the years and now that Riku is confirmed a keyblade master, he's bound to have new tricks up his sleeve if this battle were to happen.