It would be nice to get into GT, yet the best chance for an F1-themed suit to get into GT is the Renault-Red Bull Racing suit combo, as the team's lead engineer Adrian Newey worked with PD in creating the X-Series (X2010, X2011, X2014) cars and these cars use a Renault-Red Bull racing team's color livery.
Of course, they would have to get permission from Codemasters first. If they do ask, I just hope Codemasters can let them provide them access to them.