I'm curious about about how the "unilateral amendment" works. If you didn't like the fine print in it, do you have to give your six month termination notice then and there?
...and hope they don't unilaterally amend the contract in the interim to allow them to retroactively extend the termination period.
AFAIK, "unilateral amendment" should be considered at least very suspect by most courts?
Unless there are other provisions for unilateral changes for contracts in the termination period, no new terms would apply to your final 6 months.