What I've been thinking about lately:
I read a post of an Arminian that argued sovereignty is a contingent attribute of God. I couldn't help but think this in and of itself doesn't go far; one must distinguish between eternal or temporal contingency. Still, this doesn't help the Arminian's case since sovereignty seems to be essentially grounded in all of God's attributes (i.e. authority, knowledge, power, goodness, freedom and control). Perhaps, one could say God is sovereign independent of creation in virtue of God qua God exists in all possible worlds with the power to actualize any possible world He eternally decrees by divine wisdom. In a sense God is sovereign over those things which are possible (things He chooses not to actualize) and those things which are actual (things He has created).
Steve Hays posted a critique of Scripturalism; I've enjoyed his interaction with Ryan a Clarkian in the comments section. Paul Manata made a comment that I think is worth considering. Can epistemic infallablism be shown to be true? If it is possible then must it be actual? Cannot axiom S5 help to demonstrate this? If so, is this wildly counterintuitive?