The fact that they felt nostalgic about seeing the Stewartias and that Kazari said the same phrase she said in her other life gives me hope that at some point they will regain their memories, which makes me stupidly happy 
This was such a beautiful manga, I don't regret reading it or crying that much at all. Thank you for making this wonderful rollercoaster of emotions, Author-san.
hørny 7/24... wait