Full conversations with all factions, even with some special outcomes on some occasions (aka CE Social), is one of the many things on the to do list for the next update. There would indeed be plenty of room for user generated suggestions. You can submit them in the Call for Events and Textlists thread or via PM.
Some thoughts on that:
-Suggestions should be lore friendly (matching the games tone, referring to the game world, no real world references, few and well hidden sci fi references, you get the idea from the human texts I guess)
-The conversations should also match the factions broad "characteristics".
-The human conversation never have the human actually say things literally. Describing what he/she says lets the players fantasy fill in the blanks and therefore is preferable. Quoted speech snippets in the text are cool though. (see engi conversations in the code for some examples, keep in mind that slugs seem to speak with a lot of sss...)
-AI Avatars would also need their own list
-Also it would be great if they are written within <text> </text> tags, that would facilitate implementation...
/Edit: Seems there was some problem with the augment naming... and some sectors didn't get the blue options.
1.073
-Scanner augs and the production aug should be working correctly in all sectors now
