iOS 8 is tempting, given that they're implementing custom keyboards which takes away my need for iKeyWi - although, I haven't actually seen any of those keyboards, so I don't know if any will be as customizable as iKeyWi.
Plus, the feature that lets you password-lock individual apps is really nice for a parent whose three-year-old plays with my iPad a lot. Does anyone know if there's a free JB for that? I'm not sure I'm willing to spend money on tweaks right now when I might go ahead and update to 8 at some point (probably after the initial bugs are worked out).
Losing iFile would kinda suck, because it has saved my ass a few times, but I haven't actually used it in ages. SBSettings, which used to be one of my favorites, never updated for iOS 7.
Browser Changer is one I'd definitely miss. I don't suppose they're letting you change the default browser in iOS 8, are they?