move the logic which versions are supported into the downstream concern

definitions/features/satellite.rb

@@ -11,7 +11,7 @@ class Features::Satellite < ForemanMaintain::Feature
   end
 
   def target_version
-    '6.16'
+    satellite_maintain_target_version
   end
 
   def current_version

definitions/scenarios/satellite_upgrade.rb

@@ -4,15 +4,14 @@ def self.upgrade_metadata(&block)
       metadata do
         tags :upgrade_scenario
         confine do
-          (feature(:instance).downstream&.current_minor_version == '6.15' || \
-            ForemanMaintain.upgrade_in_progress == '6.16')
+          feature(:instance).downstream&.satellite_upgrade_allowed?
         end
         instance_eval(&block)
       end
     end
 
     def target_version
-      '6.16'
+      feature(:instance).downstream&.satellite_maintain_target_version
     end
   end
 

lib/foreman_maintain/concerns/downstream.rb

@@ -46,8 +46,24 @@ def fm_pkg_and_cmd_name
         %w[satellite-maintain satellite-maintain]
       end
 
+      def satellite_maintain_target_version
+        satellite_maintain_config[:current_sat_version]
+      end
+
+      def satellite_upgrade_allowed?
+        current_minor_version == satellite_maintain_config[:previous_sat_version] || \
+          ForemanMaintain.upgrade_in_progress == satellite_maintain_config[:current_sat_version]
+      end
+
       private
 
+      def satellite_maintain_config
+        {
+          'current_sat_version': '6.16',
+          'previous_sat_version': '6.15',
+        }
+      end
+
       def rh_repos(server_version)
         server_version = version(server_version)
         rh_repos = main_rh_repos