..as of now, the only cameras worth considering for video that use EF are the BMCC EF/BMPC and the 5DMK3 RAW."
Haha, people have the preferences for sure, but aside from what you listed the C100 (iffy) but C300 and C500 for sure are worth considering, plus the 1DC and every other Canon DSLR. I know your opinions towards the Canons in general, but it's hard to argue against their high end stuff.
Plus, the Sony series of Cinema cameras. There are a few that say they've had good experiences with adapting MFT to NEX, but the majority say don't do it. If you get it to focus properly you'll see vignetting in the corners. So, considering. The NEX mount FS100, FS700 (with a soon to showcase 4K and RAW Upgrade) and FZ mount F3, F%, and F55 that all take EF with a cheap adapter.
Oh, and RED.
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Now, most of your cheap glass that matches the price point of a BPCC probably won't end up on a RED or F5 or C500, but it could. I've seen plenty of shots of Rokinon glass on an Epic and it looks great. You can always upgrade, sure, but it's doable.
Just to be clear, I'm not trashing MFT mount cameras. I've ordered one myself! I just don't see the sense in limiting my options with MFT glass when there's super solid, manual EF to choose from and I can use it on way more sets.