Complex sentence: Despite different endings, one thing that remains the same is the belief that The Zone is expanding, and might actually encompass Russia and the rest of Europe-a plot point that was to be discussed in S.T.A.L.K.E.R.2 before it was cancelled.
Split into simpler sentences: Despite different endings, one thing that remains the same is the belief that The Zone is expanding, and might actually encompass Russia. A plot point that was to be discussed in S.T.A.L.K.E.R.2, before it was cancelled.