In short: CDV would've tested much, much longer, but Larian actually heard the complaints by gamers, and decided to speede up the whole process by asking known Forummembers to help out.
There are two timelines: One for CDV (which hasn't ended yet), and one for Larian itself.
Somewhere during the testing process at CDV, Larian decided to fork both timelines and invent a new one.
That new one is ready now, whereas the CDV-line still runs.
