Shimano introduced a Di II Alfine hub a couple of years ago and that will be the transmission on this frame. No cables, just one wire and one hydraulic line to the rear disc brake. There will be a generator hub in the front.
This should be a nice way to get around town. The bike might also see some touring duty and there's all the fittings for racks and fenders. The sliding dropouts will make wheel removal easier and chain tensioning on the road side no problem.