Lowndes’ partner in the last five campaigns, Steven Richards, joked on Sunday he’ll “go down to Centrelink, look through the job file and see what Supercar co-driver roles are in there”.
Speaking of Bamber, van Gisbergen said: “Unfortunately, the Supercars calendar the last two years, it conflicts with every single big race in the world – it sucks.
“It conflicts with Road Atlanta 10 Hour (Petit Le Mans) next year, so it’s going to be tough to get Earl back.
“Unfortunately that might mean four different co-drivers in four years, so I might have that job up on the board at Centrelink for Richo!
“He wouldn’t be a bad guy to put in, but I’d love to have Earl back and probably Matty Campbell will be at the top of that list; we’ll see what his calendar does.
“He did a ripper job for us last year. It’s been really tough trying to hang onto a co-driver, I get along well with them, but they seem to be leaving for different reasons.”
Although Bamber stressed he is yet to be told by Porsche what he is racing in 2019, his only other likely destination, the World Endurance Championship, also has a clash with Bathurst on its provisional 2019/20 calendar.
That could also rule out Matt Campbell, who raced with van Gisbergen in 2017, but was unavailable for this year after being placed in WEC by Porsche.
“I have no idea what I’m racing next year, we’re not told until roughly December, so I’ve got no idea whether I do WEC, IMSA, what I do,” said Bamber.
“I have to find that out in the coming weeks. [I'll] go back to Germany, having a few meetings next week, so might find out then.
“At the moment, for all the drivers at Porsche it’s all about race TBC (To Be Classified); so I’m not sure where I’ll go.”
While the plan to reunite Whincup and Lowndes 10 years on from their last enduro season together is yet to be confirmed, van Gisbergen said it’d “cool” to see.
“It would be perfect for the team and the nostalgia of it all for Craig and Jamie to be together; I don’t know what PD is going to do,” he said.
“It would be cool for the team, even to have Craig back again. He’s going out as a top driver. We’ll see what happens, we’ll see what Earl is racing next year.”