Cybertron no more?

Here's something that always bothered me, and if one of you has an answer or theory, I'd like to here it.
We all know from the begining Planet Cybertron was in a state of permanent blackout, a chared battered, relic of a once great planet.
During the course of the origional comic book and cartoon series, it was constantly brought back from the brink of doom, but never by much.
Unicron nearly destroyed it, which is another question, if Primus was his mortal enemy, why did he tell Galvatron he was considering sparing Cybertron? I always figured at the time he didn't know.
But anyhow, in 1 year the Autobots resurfaced the planet, which in it's self is an amazing feet, and most of the battles where contained to either brief firefights or taken off the planet all together.
Now follow me here, we have G1, The Japanesse Trilogy, and Beast Wars. Disreguarding "The Rebirth" these are set as an ongoing story, on leads to the next...
In HEADMASTERS, Cybertron is destroyed, left as a few chared pieces. Rodimus took the surviving Autobots with him to find a new planet, and put immediate comand in the hands of Fortress.
In the rest of the Japanesse series, the battles are all fought in space, Earth, or any number of other planets.
Then in Beast Wars, Cybertron is right there plain as day
Now I heard once that it was the Decepticons who rebuilt the planet, I don't know if this is true or not. But I'd like to either read this story or watch the episode.
But my question is, even if you don't consider the 3 story lines that I mentioned as consecutive, just in general, what do you think about this?
We all know from the begining Planet Cybertron was in a state of permanent blackout, a chared battered, relic of a once great planet.
During the course of the origional comic book and cartoon series, it was constantly brought back from the brink of doom, but never by much.
Unicron nearly destroyed it, which is another question, if Primus was his mortal enemy, why did he tell Galvatron he was considering sparing Cybertron? I always figured at the time he didn't know.
But anyhow, in 1 year the Autobots resurfaced the planet, which in it's self is an amazing feet, and most of the battles where contained to either brief firefights or taken off the planet all together.
Now follow me here, we have G1, The Japanesse Trilogy, and Beast Wars. Disreguarding "The Rebirth" these are set as an ongoing story, on leads to the next...
In HEADMASTERS, Cybertron is destroyed, left as a few chared pieces. Rodimus took the surviving Autobots with him to find a new planet, and put immediate comand in the hands of Fortress.
In the rest of the Japanesse series, the battles are all fought in space, Earth, or any number of other planets.
Then in Beast Wars, Cybertron is right there plain as day

Now I heard once that it was the Decepticons who rebuilt the planet, I don't know if this is true or not. But I'd like to either read this story or watch the episode.
But my question is, even if you don't consider the 3 story lines that I mentioned as consecutive, just in general, what do you think about this?