They'll transfer to your new bike without any problems. The threading on modern crank arms and pedals on any decent bike are all standard. (Unless you have a solid one piece crank on your current bike, in which case, you can't get clipless pedals to fit it anyway).

Just make sure to put a fair amount of grease on the pedal threads when you screw the pedals on, so they'll come off easily when you want to move them over to the new bike.