a) The major (FHFA) hurdles seem to have been cleared, but on the last earnings call, I heard something about "State Approvals", so not sure where that stands. So far, it's still "Q4". b) I think that the uncertainty/time value of $$$ is what's causing the price difference, since COOP fell in sync with RKT when the FHFA news and limits came out...
I think the answer could be as simple as in if COOP traded above RKT, then the deal doesn't look as good for COOP anymore. Makes it look like investors are trading in airplane tickets for a cruise on the titanic. (a bit exaggerated of course). It could just be trading in the current patterns solely for perception purposes.
Quote: "the gap between COOP's actual price and the implied price (RKT*11 + 2) is an indication of the market's concern that something will prevent the deal from going through."