Some days ago, Siemens released SimuLite, today drag&bot released their cloud simulation tool, and other companies already have similar products, sometimes focused on specific tasks, like palletizing.
Software as a Service is a well established paradigm on other areas, and I think we will see more and more industrial software being migrated to/also offered on the cloud in the near future, even considering that some industrial environments are not always served with good connectivity, if it has some.