May not mean anything as apparently many times government prepares for a possibility only to abandon it later for any number of reasons.
More disturbing were the reports of a "bent spear" (mentioned in another thread which should be required reading for all who fear what has become of the US) associated with the Israeli strike in Syria. I suspect it will be many years before we know the truth of this operation, made ever more difficult by the current administrations rigid veil of secrecy.
I also suspect the administration is working on the appropriate foundation for attacking Iran by linking an Iranian attack with Iranian incursions in Iraq thus thwarting Congressional disapproval of expanding war in the ME. The Israelis would prefer a more immediate response, but political realities dictate that the administration measure the possibility they will not retain control of the WH in which case there are no guarantees that the new administration would continue to follow neocon thinkers (Israeli policy) and attack Iran, thus we can expect if the administration does it will be at the most opportune time to both effect an attack and at the same time leave a US response to an Iranian response for the next administration. If that administration reacts in a similar manner as the current one we can expect to be embroiled in a war in the ME which may have no good outcomes except under one circumstance which can not be named for political correctness.
Very scary stuff.