Sydney coach John Longmire says what will be will be with Lance Franklin's future, but he urged people to enjoy the superstar.

Longmire was quizzed about Franklin after the 35-year-old booted four goals in the Swans' 38-point win over North Melbourne on Sunday.

"He's playing well," Longmire said.

"I just think we've got to enjoy it for what it is, that's probably the way I look at it. He's been brilliant to watch for so long … let's enjoy it.

"He played good footy.

"He'll make that call at the end of the year and he's got that right. He's been playing for such a long time and given the game so much. Sometimes we can look into things and want answers in black and white … sometimes you've just got to sit back and enjoy the moment with him and see him play his footy and do his stuff."

Longmire was asked if he would be disappointed seeing Franklin in different colours next season, to which he replied: "I'm not going down that path. We've got two home and away games to go. Let's just enjoy the ride a bit with him and sit back and see what he can do."

The Swans host the rampaging Magpies next week in a game that will have a huge bearing on top-four and top-two positions. Collingwood heads into the SCG clash on an 11-game winning streak.

"They're the red-hot team in the competition – them and Geelong. Their ability to just keep winning has been extraordinary this year," Longmire said.

"It's a big game next week. They're playing with real speed and power and they're able to keep going. And they've obviously got the belief in themselves, as well, so we look forward to it."

Longmire said he doesn't know how severe Josh Kennedy's hamstring injury is.

The veteran has not had any AFL game time since injuring his hamstring in the round 10 loss against Carlton, but has been playing well in the reserves.

He came from the field clutching his left hamstring early in the VFL match against the Roos at Arden St. Kennedy missed a large portion of this season after damaging a tendon in his right hamstring.