The downtime was scheduled for rockwork and cleaning/painting, but safety and maintenance took the time to double and triple-check everything. Keep in mind that the accident occurred on the opposite side of the country from BTMRR at WDW, which is the subject of this thread.
New policies regarding attraction safety have been added to the already extensive WDW safety guidelines.
On a related note, painting was also done on the Briar Patch gift shop adjacent to Splash Mountain, and if the contrast between the mountains wasn't enough, the contrast between sections of the same mountain are striking. Splash should get a major paint-job soon.