There is still one unanswered question...

[Omnitool]

After the shower scene there will be a jumpcut to
[SOMA end spoilers]

Spoiler below!

Simon-4 on the ARK. The WAU has managed to slip inside (presumably while Simon-3 was taking a nap after the airlock broke) and has started to corrupt the simulated wildlife. Simon, Catherine and the rest of the ARK inhabitants must now battle for their lives against this new threat.

The title of this grand adventure shall be ARK: Survival Evolved.

Yeah and they must craft pickaxes and other tools from the envirnoment, build shelters, etc because at night the WAU spawns creepers, zombies and skeletons.