Ability to set a timer to remind you to revisit a set of ideas

As a product owner for a small start up, we have many ideas that we just won't focus on for the next 3-6 months and it would be nice to be able to set a state where an email (or other notification) would remind me to revisit a stack of ideas that I've marked to a specific state.  

For example, in our idea workflow: 

• New
• In Review
• Plan for Roadmap (meaning dev within 3 months) 
• Revisit Future (meaning revisit in 6 months) <-- these are the ones it would be nice to set a reminder to revisit, as we'll always be focused on the near three months items) 
• etc.