Oddworld/WMG

Squeek's Oddysee
For those less familiar with the affairs of Oddworld Inhabitants in the 2000s, Squeek's Oddysee was the name of the planned third game in the Quintology(composed, to this date, of Abe's Oddysee and Munch's Oddysee; Exoddus is a bonus game). Unfortunately, with OI's departure from the game industry(and apparent hiatus for over 10 years), it never got produced. All we knew about it was that it was about symbiosis and (maybe) species extinction. Very well, let's start speculating.


 * All we know is that "Squeek has some connection with symbiosis and to be low in the food chain". It's obvious to assume he's a small symbiont organism that latches itself to other bigger creatures(akin to Abe's spiritual possession and Munch's electronic radar control), but... maybe not. Maybe he's a big herbivore, which would make him the lowest possible in the food chain. Possibly, Squeek's symbionts grant him different abilities, and he's the key to save multiple species of smaller and weaker species that cannot survive alone.

Mudokens are ancestors of Kroot.
Both races are descended from birds, share similar nature-based themes, have low health, low tech, and have similar hair-feathers.
 * Mudokons are descended from birds?
 * According to Word of God, yes. A bit vague in-game, but there are things here and there that point at it, such as the bird portals and feather-like hair of Mudoken Natives in Munch's Oddysee.

Stranger is female.
Not only do we never see the signature horns that a Steef is supposed to have on Stranger, we never see the slightest traces of horns. The other races seen in Stranger's Wrath aren't very sexually dimorphic... Stranger might just be a she.
 * I believe it's established that he had them cut off surgically so no one would realize he's a steef.