According to this superb article by Patrick Cockburn, we are to expect new or increased american military intervention in the Middle East, particularly in Syria:

„…a report by the Centre for a New American Security (CNAS) in Washington that recommends that the destruction of Isis should no longer be the overriding objective of the US in Syria, but that equal priority should be given to taking military action against President Bashar al-Assad and the Syrian Army.“

This apparently requires „A new pro-US armed opposition would be built up to fight Assad, Isis, al-Nusra and other al-Qaeda clones“.

Now take a closer look:
The Syrian Army (and allies), Isis, Al-Nusra and her Al Qaeda sisters such as Ahrar al Sham and co. have a combined man power of around 200.000 men. The loyalist factions posses both airforce and air defense. All parties together in total field thousands of tanks, armored vehicles, rocket launchers, artillery pieces and other short and mid range explosive weapons. Most important than all of this: All of the parties have 5 years of experience in irregular warfare, mastering the use of tunnels and tunnel bombs, DIY weapons, IEDs etc.
And now, a hitherto non-existent new army is going to rise in their midst and fight them all. No matter how much support the US airforce and even any special ground forces were to contribute this adventure is doomed to fail.
If you doubt this, I may refer to Afghanistan:
There the Americans/Nato had a major well-armed and -trained ally (15-20k men of the Northern Alliance), heavy ground presence (tens of thousands of Nato soldiers), an Afghan president representing the ethnic majority of the country (Pushtuns), no relevant sectarian element (broad majority of Afghans are Sunnis; Shia Hazaras very small group that was never in power), an enemy with little history of holding power (Taliban were in power just since 5 years when the Americans attacked in 2011).
15 years later the Afghan army built by Nato is hardly capable to defend against the Taliban without the help of the US airforce. The government has never regained full control of remote areas of the country and of the Pushtun heartland. The Taliban regularly stage attacks in the middle of Kabul inflicting casualties in Afghan and international troops.

Hillary and her „think tanks“ won´t care about all this. Instead she will elaborate that Syria is not Afghanistan, that the situation and the conditions are „totally different“…