So i just finished reading the last chapter of Fuuka and let me be one of the first to say..... DAFUQ DID I JUST READ?WHERE THE HELL IS MY CLOSURE?THIS IS LIKE THE EXTREME LIMIT OF OPEN ENDS!!! I NEED A SEQUEL OR AN EPILOGUE TO CLEAR THIS UP OR I AM GOING TO JAPAN TO FIND SEO KOUJI!!!!
It's already a sequel, sequels always suck when compared to the original. You gotta wait for the third at least, if you want to stay with the series.
Probably there will be a next manga, or some kind of epilogue. Since like.....It started from Suzuka, then diverse into Kimi no Iru Machi, and then somehow came the sequel, Fuuka. If this going on the same, then we will get another diverse manga, and a sequel to Fuuka.....or just a completely separate manga all-together, or SEO Kouji stop being a mangaka....well, who knows.
https://www.animenewsnetwork.com/news/2018-04-03/fuuka-kouji-seo-to-launch-new-manga-in-june/.129888 Based on this. actually, Seo Kouji gonna release another manga. probably another sequel or something.
Probably another spin-off, we are now going to get the continuation story for that one cat that crossed the paths of both mother and daughter, and that made a brief cameo in the last spin off.