I think it's a good idea to do stand alone release. Most people don't want to invest in the season sets but I know a few people who've picked up Best of Both Worlds. It's just annoying when the standalone releases get exclusive extras. I wouldn't be surprised if we see a standalone "Unification" release seeing as they'll be able to stick Leonard Nimoy on the cover to attract the people who've only seen the Abrams movies. It'll be interesting to see what they do with extras and now they justify them seeing as both parts will be on the season 5 set.