X-Men Days of Future Past Plot: Bryan Singer Tweets Ominous Photo, Multiple Character Deaths?

X-Men: Days of Future Past director Bryan Singer has revealed some more cryptic information about the film, but it doesn't look good for the mutants.

Singer simply posted the word "Artifacts" on Twitter on Friday and showed a picture of four items: the coin that killed Sebastian Shaw, Havok's destroyed X-Men uniform, Magneto's helmet and one of Angel Salvadore's wings.

Artifacts. #XMen #DaysOfFuturePast pic.twitter.com/gBKuZSD4RO

— Bryan Singer (@BryanSinger) August 16, 2013

The tweet indicates an ominous tone for X-Men: Days of Future Past. Each of the aforementioned mutants suffered some sort of attack (or worse) in X-Men: First Class, so what could this "artifacts" lineup be? Is it possible that Bolivar Trask, the presumed villain in the movie, has collected the mutants' iconic items?

Or could these "artifacts" signify some more character deaths in the newest X-Men movie?

Peter Dinklage of "Game of Thrones" fame will portray Bolivar Trask, the leader of Trask Industries who creates robotic Sentinels to hunt down and destroy mutants.

Here's some of the background information from Trask-Industries.com:

"THE SENTINEL PROGRAM

In 1973, Trask Industries introduced the first Sentinel production model, the Mark I. Bolivar Trask's groundbreaking research in AI, robotics and autonomous ballistic systems laid the foundation for the world's most capable anti-mutant defense system. Since the program's inception, we've continued to advance our founder's cause through eight additional generational upgrades and enhancements.

As we celebrate five decades of achievement, we also bid farewell to regular production of the Mark I and shift our efforts to full-time manufacturing of the Mark X - our first complete overhaul of the Sentinel line. These highly anticipated units will combine next-generation nanotechnology and bioweapon breakthroughs, promising an even brighter future for the human race."

The above quotes contain some interesting information. Firstly, the 1973 date references the "past" portion of Days of Future Past. The events surrounding the X-Men: First Class crew in the upcoming movie will take place at or around that time, so it seems the Sentinels would be involved.

A timeline on the site also details the announcement of the Sentinel Mark X Program in 2020, which could provide an indication of the timeframe of the "future" portion of Days of Future Past.

Furthermore, the Mark X Sentinels will have an "inhibitor collar" and a "mutant detection device," which would be bad news for the X-Men.