In my world I'd love to see the regime surrender their weapons and Assad's bro, who is in charge of the chem unit, should be tried in ICC since there is no functioning impartial body in the nation which can give a fair trial. I don't think we'll see Russia come through, which is why we need the UN to step up and add to the handful of cases where it has actually fulfilled their mandate to regulate international peace. We've already seen the Russian foreign minister back off the deal blaming Kerry for 'not reading' it.
The downing of the helicopter really doesn't change anything IMO. They've had numerous run-ins with Turkey ranging from pot shots across the border to artillery exchanges.
And we can start another thread about Obama's accomplishments because that is too deep to get into here, especially considering the radical right's only objective this term is to deny any part of the Obama agenda, and not to work for this country.