The Presidency has called upon a Congress aka a full Parliament (Assembly and Senate) at Versailles tomorrow.
The National Assembly will also have to vote 25 Nov. about the continuation of French military action against IS. This was on the table before the attacks.
As you may have heard, the French airforce has conducted raids over Raqa, a Syrian town controlled by ISIS. 10 planes and 20 bombs were used, so it's a pretty big operation for the task force (France has 12 fighter planes allocated, stationed in Jordan and the Emirates). To note, reporting seems to be from both ISIS and anti-ISIS sources that the raids did hit targets and that no civilian casualties has been recorded.
Aircraft carrier Charles de Gaulle should once more be sent to the area to provide 24 more planes to the Coalition. The biggest change we can expect is probably a bigger focus on Syria : France only started attacking targets here a few months ago, there was previously an understanding that we were OK for any work in Iraq, but not to play into Bachar el Assad's hands (Foreign minister was always adamant about that). The events will probably make what was remaining of the political block go. I don't expect any earth-shattering change to French or coalition strategy beyond that. I don't think anyone is really eager to really put boots on the ground and France will not go head on alone in a rash move : Quite a bit of the force projection is already allocated to several theathers and UN missions (FINUL in Lebanon being one) and the ramping up of the security plans at home in January plus now also drain some of the force pool. France loves UN mandates (especially to have their own UN sanctioned parallel operation to still keep maximum operational liberty).
As an aside, I do believe that the Guns or Butter will have to be adressed seriously at some point. In France, even though we are probably still one of the most adamant over the matter on the Old Continent (with the UK), but even more so in other European countries. There's been a longstanding claim that a lot of NATO members are freeloading US infrastructure and it is true. Considering US may have bigger Asian chickens to fry in the future, European countries should maybe well advised to not be naked considering the Ukraine crisis or what is happening in the "Near East" which share borders with (long standing despite the unease) prospective EU member Turkey.
EDIT : There's also a lot of "war" being thrown out by politics and the governement but it's a bit of empty rhetoric to be fair. For one because we are already "at war" for all intents and purpose and have been for many years.
At home, there's talks of creating the necessary apparatus to "dissolve" extremist mosques. Can it be effective ? Can't fault the governement there, it is a very real issue that some places do serve to relay heinous preach (if not worse) to young people.