It is, of course, entirely possible that those products were on display so that Festool Germany could gauge the level of interest in the products before determining whether to bring them to North America.
That being said, the 18V tools are a no-brainer because there is no need to modify the motors and the 110V chargers are already available in NA. The Conturo and other 220V powered tools are a different story. Classic example is the Vacuum Clamping system that I bought here in Germany, and will simply use a step-down transformer to operate in my shop in the USA. (Festool products all seem to now be rated for both 50Hz and 60Hz which makes that a simple process)
Cheers,
Frank