I imagine there will be multiple covers - at least two, anyway - one to appeal to older fans (Ford) and one for the knicker wetters (La Beouf).
I also think we have to accept that Shia is going to get a fair amount of screentime, both alongside Indy and away from him.
Sorry, but the majority of filmgoers are young - especially those who go to see films multiple times and bump up the BO. They're not going to pay to see a 65-year-old man play action hero. There has to be a bit of young meat in there for them to identify with.
TBH, that doesn't concern me - in Raiders Marion had her moments, as did Short Round in Temple and Connery in Crusade, plus there was Sallah too. So long as Mutt's a fun character, I've no problems.
What does concern me is the number of sidekicks - in that last pic, we had Indy, Mutt, Mac, Marion (all the 'Ms'!) plus mystery man (my guess, Hurt's character)... giving them all something meaningful to do (rather than just stand around and provide exposition) will be a challenge!