I know other games have included options to turn off post-processing which can dramatically effect how things look. LOTRO for example, completely ruined the effect dread had on your character visually when post-processing was turned off, and dread was a major component of making some fights 'feel' epic.

However, it probably reacted badly with a small group of potential customers. So it's certainly possible to have options to disable certain graphical effects, all you'd need to do is stop the looping of background images (presumeably the same thing applies to Leviathan, havn't seen the background but anything more would be technologically difficult). I really hope you get an answer to this from a community rep on whether or not it can be taken into consideration with future content. Everything like this is rendered client side so it seems like including the option wouldn't dramatically increase production times for new areas.