I'm interested to see how SQC works with partner airlines. My biggest challenge this year has been SQD on AC due to a lot of domestic US travel, so if SQM/SQD collapses into SQC and there's a way to earn a portion of it on say UA, then this could actually serve me well.

Too many unknowns at this point to speculate properly, especially with how credit cards play into it as well.