Another thing that I think is sort of reassuring, and it could just be blind optimism, sure--but the English language requirements for spousal visas were formally announced sometime in June, correct? From what I've seen, that won't actually go into effect until November. Again, a few months of notice for a change made to Settlement visas.
I think that changing much of anything to this type of visa is quite emotive, and makes for the opportunity to print a lot of bad human interest stories--something any government would probably rather avoid.
I've got to assume (only assume) they'll move slower on caps for these than they did for Tier 1 and 2. They'd be harder to implement, as well. Lots of specific language, wherein the initial changes to Tier 1 & 2 this year were just a matter of upping required points, right?
I could be dead wrong, of course, but from all I've seen any alterations to the requirements for this visa category take just a little bit more time to implement than changes to say, Student and PBS visas.