I really enjoyed the flowmotion controls in DDD and it adds a whole new mechanics in gameplay.
Now I know that time travel will very well be incorporated in KH3, but sleep has been used frequently in the series.
Post-CoM, Sora is required to SLEEP in order to retain his memories back. Then after the events of BBS, Ventus' body is in deep slumber and later we found out that his heart went into Sora. Again, SLEEP. Lastly, in DDD, Sora and Riku went to partake the Mark of Mastery Exam and they were put into SLEEP to unlock the SLEEPing keyholes and later Riku obtained Data-DiZ's data what could be either Tome of Prophecy or Key of Returning Hearts with the help of the DREAM WORLD.
And also in order to time travel, you must leave your body behind and a version of yourself waiting in that time, meaning you have to be asleep. So it means DREAM WORLD (could be) A FACTOR!!!!!!.
Take note: Sora was sleeping in the very beginning of the series "Gimme a break, Kairi"...."Sora, you lazy bum"!!!!!!!
So what'd you all think? Will dream world make its return in KH3? Plus who wouldn't want this as a companion: