When Arrow returns for its sixth season this fall, Oliver Queen will have to deal with the fallout of Lian Yu's explosion -- but that's not all. Speaking to Entertainment Weekly, executive producer Mark Guggenheim teased that there will be "other consequences" Oliver faces next season.

“A lot of the discussion that we’ve had and a lot of the discussion we’ve seen online is very binary -- people either live or they’ll die,” Guggenheim said. “There are other consequences that can come out of what happened at the end of [Season] 5 [episode] 23. While everyone is focused on one thing, you know us on Arrow, we may be doing something else.”

RELATED: Star City Miracle: 15 Reasons You NEED To Start Watching Arrow Again

At the end of the Season 5 finale, the series teased multiple — and major — casualties after Prometheus blew up the island while Felicity, Dig, Thea, Curtis, Renee, Dinah, Slade “Deathstroke” Wilson, Nyssa al Ghul and William’s mother Samantha Clayton were still on it. Midway through the episode, Felicity discovered with horror that the whole island was rigged with hundreds of explosives; what’s worse, these explosives were connected to Adrian Chase himself. So long as Chase was alive, the bombs wouldn’t go off; however, if he was killed, all of the bombs would detonate. So, at the end of the episode, he shot himself in the head to teach Oliver a lesson and triggered all the bombs on the island. Oliver and William watched in horror as the whole island went up in flames, and the episode drew to a close.

Of course, it seems unlikely that every member of Team Arrow died on the island tonight. After all, The CW announced that Rick Gonzalez (Renee “Wild Dog” Ramirez), Juliana Harkavy (Dinah “Black Canary” Drake) and Katie Cassidy (Earth-2’s Laurel “Black Siren” Lance) had been upped to series regulars for Season 6 last month. Nevertheless, that doesn’t mean everyone is safe, so it wouldn’t be entirely surprising to see most — if not all — of Team Arrow back this fall. Further, Artemis and Talia al Ghul were on the island when it exploded, so their fates are also up in the air.

RELATED: Arrow: Executive Producer Teases Helix Group’s Return for Season Six

Seeing as William's mother Samantha was one of the people stuck on the island when it exploded, it's possible that one of those consequences revolves around William himself. If Samantha is killed in the blast, Oliver may feel compelled to take guardianship of his young son, which would dramatically alter his character's direction and change the dynamics between Team Arrow in Season 6. However, Guggenheim offered no hints in his statement, so that remains purely speculation at this time.

Starring Stephen Amell as the Emerald Archer, Arrow returns Thursday, October 12 at 9pm ET/PT on The CW. The series also stars Emily Bett Rickards, David Ramsey, Willa Holland and more.