If they picked random stuff from previous packs and added to the picture, I wouldn't be speculating, but to me it really looks like it's a hint.
Why would they pick 2 different images of cats, for instance? If they were just showing random previous content, why not add a skeleton, a servo or something like that, why add FOUR cats in the picture (and in two different places)? On top of that, there's an owl, a kid with an unicorn t-shirt holding a bear, a spider and a sim with an elephant pattern on her skirt. I mean, isn't that too much animals? I say that's speculating material, but that's just me.
Also, as I mentioned, those sims protesting could definitely be related to Eco Lifestyle, and I just noticed that in the male sim's shirt is planet earth. To me that's definitely realted to the community gathering and voting to stop pollution.
The future cube (which the simgurus themselves brought attention to) also has these 2 phrases:
"I see a gnome wielding a frozen rabbit riding atop a llama into battle against an udder'ly impressive foe."
"Your future looks pixelated."
You can clearly see a pixelated gnome in the picture and, considering the 4 felines in the picture and the elephant pattern, the impressive foe could be a lion or an elephant.
I'm generally quite realistic/pessimist and don't tend to dream too much, also, safaris are not on my wishlist, so I have no reason to be reaching about it, I just really think there's a lot of hints in this pic.