I can't imagine they'd put their own pics on the cover. I just feel like they're beyond that. Little dogs on surf boards makes me think of like Blink 182 or the Jonas Brothers... IDK, just seems corny, sorry, don't mean to offend your idea. I think that image is hilarious, but not for STP album cover.
Maybe if each member of STP took an old baby pic from when they were 1 or 2 and super imposed them playing instruments, scratch that, not playing instruments but instead they're cooking a big meal atop of an erupting volcano. Haha, that'd be hilarious. Although now for some reason that album name 'Core' seems to be more relevant to that image. Oh well.
Let's be honest. I don't think anyone of us will care what it looks like or what it's called as long as STP does indeed put out another album.