Trump said that 10 weeks ago. He's a businessman and isn't going to wait endlessly for a potential hire to fill out an employment application. There's a great candidate making his case for the job and Trump is interested.
FWIW:Someone told me they saw someone on the great American Panel of high GOP clout on Hannity supposedly say that there is a GOP process that all that are even thinking about running have gone through. A vetting sort of process all have to do each time and that Palin has not contacted them. They supposedly guessed Palin is not running. So unless Palin is going real rogue/third party; she may not be running.