One of the funnest parts of Guardians of the Galaxy was when Howard the Duck showed up at the end for his post-credit cameo. No one was expecting it, and fans loved to see the talking space mallard return from obscurity. Ever since, there have been murmurs that Marvel might actually make a standalone Howard the Duck movie sometime in the future. Someone who absolutely agrees with that idea is producer of the original 1986 movie George Lucas.
Howard the Duck was one of the biggest bombs of the 80s. Though, it has since grown a pretty healthy cult audience. Speaking with Stephen Colbert about the calamity that was the 1986 Howard the Duck, George Lucas places all the blame on the costume, but goes onto say that he 'believes' Marvel will bring the duck back for his own solo adventure:
"You can't put a dwarf in a duck suit and make it work. I have a feeling that Marvel is gonna redo it because of the technology we have today. The thing about art is that it's based on technology. [At the time], they said it couldn't be done, and they were right.
Though its coming on a full year since we first saw Howard the Duck reintroduced to audiences as part of the MCU, Marvel has not acknowledged or even teased a standalone movie. Director James Gunn has also denied those rumors in the past, saying it was just something fun he wanted to do for his movie, and it held no implications for anything planned in the future. Howard the Duck has since returned in a new Marvel comic book series, which you can currently pick up at your friendly neighborhood comic book story.
If a Howard the Duck remake were to happen, we wouldn't see it until 2020 at the earliest, which is only five years away. Is Howard's return being planned for Marvel Phase 4? Maybe he'll get a second cameo in Guardians of the Galaxy 2? We just don't know!