Linked Server support
Ability to automatically import Linked Server objects from the target database server into "additional scripts" folders (https://documentation.red-gate.com/display/RR1/Additional+Scripts)
Additionally, it would be useful to be able to pass in the server name that the linked server points to, e.g. using a SQLCMD variable. A change to the variable value should cause the linked server script to be re-deployed.