[Kleeyook]

Originally Posted by Helius

Spoiler for Theory:

I would say it's more akin to Jurassic Park where the island is declared a hazardous zone after the outbreak, considering all those deadly animals roaming about and the Eden Project is a failure. So the nations declared the whole area (sea/air) off limits. The US Navy/JMSDF may have also set up a quarantine/blockade which may suggest why there're no planes or ships neatby.

But yeah I too doubt that the story can be wrapped up satisfactorily with just one chapter left. Maybe it'll be a 50-page chapter. Personally I don't think there's gonna be a 2nd arc since the mystery of the island has been pretty much solved with just a few loose ends here and there. So far I can see only 2-3 possible outcomes - the group either resign to staying on the island or they make a run for Okinawa; or there's a deus ex machina as suggested and they go back in time, which would be ridiculous without a sensible explanation....

Spoiler for Jurassic Park:

I know about the case with Jurassic Park where they quarantine the area around to be off-limit. Still, there should be people trying to smuggle the animals from there.
I'm quite sure that they're at least 70 years in the future, yet absolutely no sign of air traffic nearby, kinda weird. We even have so advanced satellite that can provide extremely accurate images from above and ruin our privacy. Can't someone notice something wrong with the island from the satellite?