The Romanian defender is on his way back to Glasgow today to start pre-season training.
Goian has continually pledged over the summer that he wants to stay with Rangers.
Even this week, the former Palermo stopper has had offers to move according to agent, Florin Manea.
But he has revealed that Goian has communicated directly with manager McCoist and owner Green that he wants to remain at Ibrox, no matter what league they end up in.
He said: "We have given Rangers our word that Dorin will remain and he will honour his contract. He's promised both Ally McCoist and Charles Green he is staying.
"We will hold more discussions when we know what league Rangers will play next season. We have communicated to Rangers that he wants to stay and help the club get promoted back to the top division.
"Even this week, we have received more offers from clubs. There has even been talk of a Romanian club trying to buy him, but with respect to them, that won't happen.
"Dorin took a 75% reduction in salary, but I can confirm he was paid his full wages again in June.
"Glasgow Rangers are the most famous name in Scotland and it would cause chaos if they are relegated to the bottom league.
"I am led to believe it's 95% certain they will go into the First Division."
And Goian has even been given assurances that he will not lose his place in the Romanian national team, even if the worse does happen to Rangers.
Manea said: "I spoke to a coach at the national team about whether he would lose his place because of what is going to happen at Rangers.
"The response was one of common sense – he doesn't need to prove anything to anyone.
"It's a sensible decision. After all, do you think Italy didn't pick Alessandro Del Piero and Gianluigi Buffon just because Juventus were relegated to Serie B?"
