So is a picture of said structures gonna be released, or...?
We don't have a picture. Not in any regular sense.
Basically, we've got telescopes aimed at that star. And they measure the amount of light coming from it.
That light is pretty consistent most of the time.
Every now and then there's a little decrease in it's brightness, and this is usually because something has gotten in the way of it.
This technique is usually what lets us identify planets around distant stars. By seeing a dip in the brightness we can tell that a planet has crossed between the star and our view, dimming the light.
The light from this star has also had a dimming effect, but the pattern of the effect doesn't quite match the patterns we normally expect from planets orbiting a star.
As a result, some are speculating that it's a different megastructure (we say megastructure only because it has to be a very big thing (like planet sized) to create a noticable difference in brightness) from a planet.
It's only speculation that it is 'alien', because we don't have many theories for what else it could be, if it's not a planet.
Furthermore, the speculation that it is alien is coming from someone who works at SETI, who's job is basically to search for signs of life out in space. It may just be them getting a little excited.
