It will be Orange of course! I am also pretty certain that it would be an M-type. As for gearing I am tempted by the simplicity of 2 x gears but the three speed would be more useful. There is a huge premium for having a titanium version and and I wonder if the saving of roughly 1kg is worth this premium? I have always wanted a titanium version and with the changes hinted at when I went on the Factory Ride, it might be time to upgrade.
No of this is certain but I would like to hear from other Brompton owner of titanium versions to say what they think about their bikes.