Well he has opted for arbitration and his agent is the same one that ROR had and we all know how much fun those negotiations were. Maybe I'm reading too much into things? IIRC media types have also said that he maybe dealt which could just be speculation or it could have some weight behind it.
To be honest, Barrie filing is a better sign than anything that he wants to remain with the Avalanche. He is giving the Avs much more control than had he not. Avs can now choose not only the term, but also not be worried about offer sheets. Also, it allows the Avs to keep their 1 club elected option for the next deal be it in 1 year or 2.
As for the trade possibility, I think there are calls coming in to Sakic more than calls going out. That should be expected considering the Avs history of moving players if they demand too much money, and the fact that MacKinnon had not been re-signed yet.
I imagine now that the Avs have a better idea of the money available, Barrie will be signed either to a long term deal or another bridge within the next couple weeks. The Avs will probably give favor to Barrie's choice in term as long as the AAV is reasonable.