My question regarding the possibility that "Angry Birds" is becoming easier with new versions was closed after being down-voted 8 times. (After an encouraging single up-vote.)
I tried to present the question itself and the motivation behind it as clearly as I could. On the face of it, the question seems on-topic and it is close to an earlier question that was very well accepted, if "Angry Birds" involves randomness. The randomness question attracted also good and definite answers. I expect that similar good and definite answers to my question are possible as well.
Update: I accepted MBraedly's answer. While I disagree that the question is inherently speculative and that the only way to get a definite insight is to ask the Devs, I appreciate this point of view.