Michael's answer is spot-on. The only thing I can say additionally is, this is a prime example of an option being in the tenant's favor. The only time the field again reaches a point of parity between parties is when "the option is up".
It is my belief that the only way you are likely to gain a new option is by signing an extension of your current lease under negotiated terms with the landlord, which includes as a condition a new option period, or periods, that will become effective at the end of your extended lease term.
Good luck and Onward and Upward!
Jun 21, 2012