The center of gravity for opposition shifts to Idlib province and Idlib city. That city is dominated by the al-Qaida wing of the opposition and other Salafist forces. The United States and the West cannot support those Salafists and al-Qaida. It means that the rebels are going to have a very hard time getting significant amounts of support.
I know you're looking for a ruby in a mountain of rocks, but there ain't no Coupe de Ville hiding at the bottom of a Cracker Jack Box.