This discussion may contain spoilers!
*****WARNING: I do not recommend reading the following theory if you have not read 1984 by George Orwell, the Walking Dead novels or A Song of Ice and Fire book series by George R. R. Martin (GoT S4 SPOILERS)*****
So Kenny is back from the dead, to the joy of many, including myself. He has changed though, and it's not for the better I think (besides the glorious beard). He acts normal at first, but when faced with opposition (Nick/Luke on Wellington, Rosita and the box), he is enraged. We saw in season one when his boat plan was opposed, he was enraged at the notion. Also, Luke is missing in action at the end of the second episode of season two and there is speculation that Kenny may have killed him because he is a potential threat to Kenny's delusions. He clashed with Luke, so this cannot be ruled out. His new girl, Rosita, again has a foreign accent, similar to Katjaa and at dinner, he calls Clementine Duck by accident. So Kenny may have mentally replaced his family and his automatic expectation is that Clem will stay with them. Rosita says that Kenny will not talk about his past, so that may mean that he has repressed or attempted to cast away the memory of his old life. We see that Kenny is not the same and is a little mentally unhinged. He obviously dislikes Carver because of the threat he poses and in the trailer for episode three, we see his defiance to Carver. I think at some point in episode three, Kenny may be tortured by Carver extensively. Rosita will be killed to get to Kenny and Kenny will break mentally. I theorize after this that he will still oppose Carver, but we also know Carver is very intelligent (cabin survivors comments). Soon later, Carver will turn Kenny to his side by whispering in his ear (so to speak) that they can make Carver's 'community' paradise. I do not think that this is an unreasonable supposition because in 1984, the protagonist Winston Smith is tortured to the point that he eventually comes to love his enemy, Big Brother. Again in the ASOIAF books/GoT show we see Theon Greyjoy turn over to Ramsay Snow's side after extensive torture. In the Walking Dead universe we see a fairly normal person, Brian Blake (The Governor), turn into a monster (TWD novels) due to the stress of being in his brother's shadow before the apocalypse and die to the stress of the apocalypse. In conclusion, I do not hope for Kenny to become a lackey of Carver's, but I think it is thoroughly possible for him to become one. On a side note, I think we may see Lilly at Carver's camp along with whoever goes with Tavia. Thanks for reading!