News on Star Wars: Rogue One had been relatively dormant for quite a while. That is, until a couple of weeks ago, when the first supposed plot details, character descriptions, and a possible cameo by none-other than Han Solo were revealed. Given that Star Wars: The Force Awakens has already been given center stage (though it still continues to impress at the box office), it seems the time has finally come for Rogue One to have a chance in the spotlight.
While The Force Awakens combined both the old and the new to create a film that both appealed to the nostalgia of fans as well as brought something fresh to the table, Rogue One will more likely focus on the old — mostly because it takes place earlier in Star Wars history. In fact, Rogue One is set before the events of the Original Trilogy, as it will center on the band of rebels who stole the Death Star plans and propelled their mission of taking down the Empire forward.
Due to the fact that it takes place only a short time before A New Hope, it’s expected that Rogue One will feature a few cameos from notable Star Wars characters — namely Darth Vader (who may have a more substantial role than initially expected) and Boba Fett. It seems those two characters won’t be the only two elements from the Original Trilogy to appear in Rogue One. According to the latest rumors from Making Star Wars, which claim — among other things — that Felicity Jones and Diego Luna will star in a sequence that pays homage to the iconic scene from A New Hope in which Han and Luke go into disguise as Stormtroopers.
However, while the premise may be somewhat similar, there is a small but significant difference in their respective disguises. Instead of dressing up as Stormtroopers, Felicity Jones will don the apparel of an Imperial Gunner, while Diego Luna put on the attire of an Imperial Commander. Of course, one should take caution as this is nowhere near confirmed. However, assuming that it’s true, this rumored scenario would be both a brilliant way to call back to the Original Trilogy while also putting a unique spin on the situation.
In addition, the report also went onto note more details about Alan Tudyk’s character in particular. The character is said to somehow be “more than a droid,” while also being “a commando droid” that “looks really cool.” Of course, the preceding sentence could be taken as being seemingly contradictory, but it appears that while Tudyk will be playing a droid character, that specific droid will be more complex than the others we have already seen in the Star Wars universe.
The report also goes on to give a few codenames being used for the characters in the production of Rogue One. Felicity Jones’ character is said to be codenamed Green Seal Leader, Jiang Wen’s is Seal Communicator Blue, Forest Whitaker’s is Eel Commander, and Alan Tudyk’s is Seal Droid. Additionally, the report also claims that all of the villainous characters “have codenames related to sharks.”
Again, before taking this as fact, bear in mind that none of this is confirmed. Even then, it’s possible that this is not actually what the characters are referred to as in the film itself. Remember, during the production of The Force Awakens, Daisy Ridley’s character was referred to as Kira, but we later found out that her actual name in the film was Rey. It seems this may be a similar situation, although given that these appear to be actual military-esque codenames, perhaps it’s not the same situation.
If the latter happens to be the case, then the codenames above are a quick and easy way of both making characters’ allegiances clear and also denoting their ranks in their respective groups. It’s hard to know whether these will be their actual codenames in the film, although fans will probably not have to wait too long to find out either way, as the first trailer for Star Wars: Rogue One is rumored to be premiering alongside Captain America: Civil War this May.
Rogue One: A Star Wars Story will be released on December 16th, 2016, followed by Star Wars: Episode VIII on December 15, 2017 andd the Han Solo Star Wars Anthology film on May 25th, 2018. Star Wars: Episode IX is expected to reach theaters in 2019, followed by a third Star Wars Anthology film in 2020.
Source: Screenrant & Making Star Wars
Geek Carl 
There was some rumors about plot that it has been leaked and some wrong plots published. But its quite interesting to hear about Rogue one that it is different from most of the franchisee movies. I got this knowledge from here :http://watchrogueoneastarwarsstoryonlinefree.blogspot.com/