Given that as of last night he wasn't decided about meeting with OKC again, I think meeting with them again today is not a good sign. But who knows?
Here's my reasoning:
OKC has always been the preferred destination. He's basically set at an OKC default, and one of the other suitors would have to sway him otherwise.
Thus, to me, no final meeting with OKC would mean that no other team was able to sway him, since he was set at an OKC default anyways. Now, though, I reckon that this is a way of giving them one last chance to persuade him/match what the others team have offered in their pitches.
I could be way off, but that seems to me to be the logical way to look at the final meeting with OKC, especially if we assume that it's been the default the entire time.