I loved Kingdom Hearts 1 & 2. They're releasing KH 1.5 for the PS3 shortly. It's going to combine 1 & 2 as well as some of the hand held games or something, to really give you the story.
I would assume that Kingdom Hearts 3 will be available for the PS4 in the future. Such an awesome franchise.
I just watched all 50 minutes of your video link. Thanks for that. I had only ever played KH1 and 2 and bits of Chain of Memories (in the PS2 remake). I don't own a portable, so those game evaded me.