About the Elsevier Partnership: I'm skeptical, probably like most others, not so much of the theory behind it which I personally think works, but of their ability to generate useful, all thriller no filler content that is worthwhile to train on. No matter how fancy they make it look, garbage in garbage out.
A well written syllabus or clear, concise text (all too rare) + no frills Anki is about the most IMO you can benefit from spaced repetition. I also think that making the cards and thinking critically about what exactly is important and testable is half the benefit, as it turns all reading into active reading. Plus the key conceptual frameworks that you need to build in your head in order to have a place to put and retain all the minutiae are not made with "spaced rehersal" but with old school, painful, frustrating, ass-in-chair time till it finally clicks.
But if they have really solid content and don't oversell its utility by trying to make it into something it isn't, I do think it could be a great thing for medical education; students will try it, and if it actually works, schools will follow. If only because almost anything would be an improvement on the way they try to do things now.
