The 7.05 plan for BLM is pretty vague, to be honest. 'Plans to make further changes to action potencies' makes it sound like they've made part of their intended adjustments already. I wouldn't be making raid plans based off of that.

The crux of the problem is the schism within casters around access to raise. Raise is a powerful enough progression tool that it can guarantee a slot on its own. The fact that PCT was introduced without raise puts it in a fight for its life against BLM. I'm sure that BLM will be viable, but they're clearly pushing people towards PCT.