A number of applications in the Patch My PC catalog offer ARM architecture support and this seems to be gaining popularity. A couple examples I've noticed thus far are Cisco AnyConnect Secure Mobility Client, Sysmon just released ARM support this week, and Zscaler is slated to release an ARM version with their next major release.
This could be accomplished either in the existing deployment type code where the architecture is detected and the appropriate source file is executed or through a second deployment type with Requirements set to all the Windows ARM OS versions.