Ok, Brink sequel. Needs a third and maybe even a fourth faction. How about the Ark happens across a small island, an island that has big cities but also plenty of nature still intact. Let's say the island used to be part of Hawaii, or somewhere in the Caribbean. Then lets say that the discovery of the island brought relative peace, for a short while, at least. Then the people split into factions once more. Overcrowding soon becomes a problem once again, and...
That's all I got so far. :shrug:
If they find an island, it will most likely be Mt. Everest, you can't have low altitude islands like Tibet and the aforementioned because their mountains wouldn't be above the new sea level. You never know, maybe they do find land at the end of Brink, or maybe they find another ark. After all, it was a prototype. That's how Halo worked: if the plot cannot continue with said halo, make a second halo, or a million. I agree it is a little soon to be demanding any specific follow up plot, but it isn't too early to speculate.
Also, flying cities are too futuristic for this game. 2045 has a lot of green tech, but not enough groundbreaking chemistry to make a flying city run on recyclable fuel (cold fusion anyone?). After all, what reasoning is there behind having a floating city? aquatic zombies? piranhas? at that point people would feel the style has broken off from the original.
If they do run into a new city, I can see the Resistance and Security having style changes, adding colorful Japanese clothing to the Resistance and everything from scuba diving suits to gullies for the Security , alongside the introduction of new voices.
The only way to tell if SD is planning on a sequel is the by beating the game. If they leave a cliffhanger it's possible, if they don't the game would have to sell enough copies to change their minds. I think it was Wedgwood that said, paraphrasing here, I like the way it begins, and I like the way it ends. Wait, and be content Brink 1 isn't being delayed a third time.