Stephen Hendry is backing The Rocket to go and break his record outright following his seventh world title.
The 46-year-old equalled Hendry's long-standing reign for most wins at the Crucible with an 18-13 win over Judd Trump.
O'Sullivan confirmed he will be back next year and there now focus on whether he can win an eighth and according to Hendry himself, it is achievable.
"Deserved win. As I said on the commentary, he's taken snooker to new heights," said Hendry. "I'm actually surprised it's taken him so long to get to seven - that's how good he is.
"When I got six to equal Steve [Davis], I had to get seven. I presume it'll be the same for Ronnie, he'll have to get eight. I'm sure he won't be happy until he's done that. That will be the aim - as simple as that.
"He's a winning machine. He said he doesn't look at the records but he'll want to get eight. Absolutely. The way he's dominated this World Championship from start to finish, it's been an outstanding performance.
"OK he's maybe not been put under the pressure but that's because he's played so well and has refused to let people put him under pressure. He's just been wonderful. The compliments, you can't give him enough the way he's played here."
Meanwhile, Trump - who shared an emotional hug with O'Sullivan at the end of his defeat in the final - believes O'Sullivan can win more than eight.
"I'm sure he'll be back. It wouldn't surprise me if he goes out now and beats the record and gets to eight.
"The level he's played, apart from Mark Williams, he was different class to everyone in this tournament. It only ever looked like there was going to be one winner.
"He's at seven now. I think nine is quite achievable. 10 is a bit of a push. I certainly think he'll get to eight, I'm pretty positive of that, playing the snooker he's still playing.
"I think he'll definitely break the record. Even though he doesn't say it, I think that'll be a big, big target for him now. Just to set himself out there on his own. I think he'll still be around for the next 10 years," added Trump.