You never know what is going to happen. I had a EQ 625 in March, after just opening an Orchard Bank card. Then in the summer, after I lost my job and fell behind on two different CC payments, I signed up for myFICO to check my EQ score and it was down to 545. Then it dropped to 515, when then balance on a CC increased. I've looked to DV, dispute and GW the various derog accounts, yet haven't heard word one from any of the OC (except for WaMu, who dismissed my GW) to know if there will be an adjustment in the reporting that will then affect my score.
I would hope that someone at the the OCs shows some mercy and makes a GW adjustment, or the dispute doesn't get handled in time.
But who knows how the cycling and recomputing at the various CRAs works and then is updated.
My advice to you is to work on the PFDs and on the GWs. Auto companies will probably respond favorably to GWs, if there wasn't a repo or something.