Supposed Dragonball Movie Reboot screenwriter Kazuaki Kiriya has denied any involvement in the listing of the Dragonball reboot and has requested IMDB to remove said listing.
"Screenwriter and director Kazuaki Kiriya wrote on his Twitter account on Monday that the Internet Movie Database’s (IMDB’s) “Untitled Dragon Ball Reboot” entry, which lists Kiriya as a writer, is “completely fake.” He said that he is currently asking IMDB to correct the “nonsensical info,” and he added that the misinformation is adversely affecting the actual projects he has in the works."
Here is a poor translation via his twitter.
" RT stop spreading false information like Dragon Ball. Many people have e-mail inquiries. I’m really annoying. I also adversely affect our ongoing projects, please lend me the power of you please fix this false alarm. By the way, IMDB is to apply the fix.
Spread hope!! RT @ Escher_ reviews of Dragon Ball, denied your identity! RT @ Kazuaki_Kiriya something like IMDB has listed the information is bogus, and is Gase at all! That reason right there! Currently, IMDB being asked to correct."
So there you have it, the Dragonball Evolution reboot is confirmed to be a fake.