Prepare Active Directory and Domains Months Before First Exchange 2013 Server is Installed

Hi.

We are running an Exchange 2007 SP3 RU10 environment.

I’m planning to prepare my Active Directory and Domains next week-end but I don’t plan to install an Exchange 2013 server in my environment before 2 months.

Does anyone is aware of issue I could find ran into having Active Directory and Exchange Organization ready for Exchange 2013 without having an Exchange 2013 server installed?

Thank you.