Campaign Builder - Ability to schedule emails more than 12 months in advance

I created a campaign and the content was great, however the most I could do a campaign length was 2 months.  For optimal reach I would suggest extending the length up to 52 weeks (12 months).  I work in the mortgage industry and to keep in front of my prospects I need to have monthly emails going out to them, especially with people that don't qualify yet due to credit problems or needing more savings.