Would you mind highlighting the differences between the leaked and final script?
I'm very much interested in this also!
Actually, from what I've gathered the differences are minimal. There have been several leaked scripts too, at least three different versions. This one
is the oldest I could find, uploaded on november 2011; it doesn't have the conversation with the Catalyst (wich was called GUARDIAN back then) but the destroy-control-merge options were already outlined.
A more recent version included a conversation with the Catalyst, wich is a slightly better written and more elaborated version of what we've got in the actual game. I can't find the pastebin link anymore, but it's been referenced in several threads at BSN, for example,here
, they are worth a read.
The main differences with the final product do not concern the ending:
- In the intro Shepard was supposed to actually face a trial.
- Javik was supposed to be included in the main game. In one script he is also referenced to as the Catalyst (although later, in the same script, the Citadel is also revealed to be the Catalyst. Whether this was a mistake or a simple plot advancement it's unclear).
- The battle at Thessia was a lot more dramatic, Kai Leng was actually dangerous, and Shepard would end up severely wounded. Kai Leng could also turn the Virmire survivor against Shepard.
- There was a "retake Omega from Cerberus" mission. This is where the rumors of a future Omega DLC came from, I suppose.
-The battle on Rannoch had an additional outcome, with Admiral Xen enslaving the Geth.
-The encounter with the Illusive Man was different.
-Zaheed had his own mission.
-etc etc, you have the links, enjoy the read!
The "Dark Energy" ending everyone is talking about was NOT in the leaked scripts. If it was scrapped, it happened way before then. Bioware did NOT change the ending due to the leak.