As far as Montoya I think he'll retire. People tend to forget the ridiculous amount of money he made the years he spent in F1.
According to what CrockerFan put on here awile back Ganassi had Ryan Newman in his sights, but if you believe what you see on Jayski.com Ryan Newman replacing Harvick at RCR is all but a done deal.
The other rumor is the #47 Toyota team that Bobby LaBonte has been driving for is leaving Toyota and basically becoming a RCR satellite team, so they may be looking for a new driver.
When it's all said and done I don't believe McMurray will be back with Ganassi in 2014 either.
As far as Silly Season goes for 2014 I think it's a done deal that Brian Vickers will be with MWR full time in 2014. Looks like both Ganassi and Childress may be interested in Newman. Not only is Harvick leaving RCR, but how many years does Burton have left with RCR, and a lot of people think this may be Burton's last year with RCR, so even though Childress wants to move his grandsons up to Cup eventually there may be room for Newman at RCR. Will Kurt Busch stay with the #78 Furniture Row team, and where will Allmendinger end up in 2014? If Newman goes to RCR who fills Montoya's seat? If Ganassi also releases McMurray who fills his seat? If Newman goes to RCR could Busch and Allmendinger end up at Ganassi?