Running Workflow Foundation on a different server than the CRM server?

In the last weeek I have been working on my new assignment for a large Financial Client in the Netherlands. One of the questions of my client was: is it possible to run the Workflow Foundation on a seperate dedicated server than the CRM server? After a short call with Microsoft, a received a link of one of the Microsoft CRM consultants that's said:
It is NOT possible to run Workflow Foundation on a different server than the CRM server, see original post here.
The following roles/services can be installed on different servers (only by using command prompt installation):

• SRS Data Connector
• SQL Server
• Application Server
• Asynchronous Processing Service
• Deployment Service
• Discovery Service
• Help Server
• SDK Server

So this can have impact on your architecture so keep in mind!