Synthetic said:Oh, this looks like fun.
Chiramii
I predict Chiramii only evolving once, much like the rodents of previous generations, as much as I'd like him not to be the overlooked rodent. Now, Chiramii resembles the chinchilla lanigera species more; the thinner of the chinchilla species. The other species, chinchilla brevicaudata, seems more chubbier and pudgier, which leads me to believe Chiramii's evolution might be just that, and not as nimble as Chiramii.
Munna
As much as I'd like her not to be, she seems to be the pre-evolution of Drowzee. Why, Nintendo? I don't like Drowzee or Hypno; Munna is awesome. If she isn't... well, I have no idea what her evolution might look like. Probably a larger version of her, with the flower patterns becoming actual flowers.
Gear
Ah, my favorite! Truthfully, I don't see Gear evolving. If it does, maybe they'll pile up on one another, with their backs connected, and enlarge? I don't know.
Mamepato
Ah, the bird. The previous generation followed this pattern of evolutions for the birds: 3-2-2-3, referring to the number of evolutionary stages. If we're to go by this pattern, it would seem that Mamepato will evolve but once. It'll probably (and sadly) be just a bigger pigeon.
Hihidaruma
The more I look at this thing, I find it cuter and cuter. I like how they combined gorillas with daruma dolls. Anyway, again, I don't see this guy evolving. I just don't. Maybe he'll have a pre-evo, that seems more likely (even though I'm practically sure he won't have evolutionary relatives at all).
Shimama
Shimama seems like the Pokémon to evolve once, and not have many differences between the two forms (example: Houndour and Houndoom). Perhaps the color pattern for his evolution will be inverted, so that it's white with black stripes. Or maybe they'll use blue or yellow for the stripes.
Meguroko
As many have said, Meguroko will probably evolve into just a bigger crocodile. However, I am hoping for this evolutionary family to have three stages--so we get a pretty awesome final evolution.
I really loved how you supported your answer for each, especially Chiraamii!