It may be possible to do what Verizon calls an annual upgrade.
The requirements for this are:
1> A monthly access fee of 49.99 or higher (for the last 3 months) on the line being upgraded.
2> No past-due on account
3> New 2 year contract
4> It must be at least 12 months since your last discount.
5> ? Enrolled in MyVerizon ? I think this is required.
This is a $20 (I think) fee to do an annual upgrade, and it resets your New Every Two date to another 20 months.