Haven't they been saying that for a while now ?
I don't think many people in the industry seriously expect it to happen. For a start, they would need a new wing manufacturer - Bombardier are hardly likely to want to resume building them in Belfast for a project that would compete with the CSeries.
Indeed it's a long story still on going... I don't think there can be issues with Bombardier, considering they already have a commercial agreement .. I am more worried about the investments necessary... where will they find the money?