Mulhollond Madness is being replaced with Goofy's Sky School. The Orange Stinger has been replaced with Silly Symphony Swings. In both cases, they are essentially the same ride, just with a Disney overlay, so you don't really need to worry. Now, if you enjoyed Golden Dreams, well, that is completely gone.
Good news about the Tortilla factory. Most of the time now it seems like you don't have to watch the little movie first. Just walk on through and get your tortilla. We make it a point to go through at least once every visit to DCA. DD11 usually goes through twice. Especially if it's flour.