Don't think so. But can you really trust what the papers or this Treasurer/Government say.
An article posted by another user on the AGO thread seems to suggest no Diesel Rebate cut.
"Treasurer rules out diesel rebate cut
WAYNE Swan has told a group of economists there will be no cuts to the diesel fuel rebate in Tuesday's budget despite fears the mining sector is set to be slugged with another bottom-line hit." full article at link.