The 9th and final BD/DVD volume is soon to be released in Japan on February 22, and a preview video for the included special episode titled “Oukoubakko no Poriomania (Rampant Poriomania)” was streamed.
Set a few months after the conclusion of the series, the special episode revolves around the Future Gadget Lab members traveling to America after being invited by Feyris. They also plan to visit Kurisu, who had went back to America earlier.
So I guess this and the movie is gonna be anime-original from here on. Although I wonder why Suzuha appears since she shouldn’t exist for another several years. Either that’s a flashback or it’s possibly her mother. Also, dat Meido Kurisu.