'Arrow' season 4 episode 10 spoilers: Oliver seeks vengeance in 'Blood Debts'

"Arrow" season 4 will return on Jan. 20.The CW

The midseason finale for "Arrow" season 4 ended on a very dark note when Damien Darhk (Neal McDonough)sends in his goons to kill Oliver Queen aka the Green Arrow (Stephen Amell) but they end up severely injuring Felicity (Emily Bett Rickards). When the show returns, Oliver will be conducting a manhunt to take down Damien.

According to a report from MNRDaily, Thea (Willa Holland) informs Oliver that Felicity is still alive in the ICU but only barely. It is also stated that her injuries will obviously be the main cause for Oliver's manhunt and angered vendetta. However, her ultimate fate has yet to be confirmed.

The official synopsis from Comic Book Movie states Oliver will go on a "brutal" manhunt, which indicates this season may see Oliver at his most violent yet.

Oliver has killed in the past, particularly during season 1 and his stint in the League of Assassins in season 3. However, if the synopsis is any hint, it is likely Oliver will break any rule he has set before in order to bring down Darhk, possibly leading him to go on a killing spree.

However, despite being alive for episode 10, titled "Blood Debt," there is still the potential of her dying later on. Seen in the midseason trailer is a grave that Oliver kneels down on and it is heavily implied that this is Felicity. However, some fans speculate that this may be someone else and there are rumors of it being Oliver's son.

Unfortunately, the latest promo trailer doesn't give any clues as to who might be in the grave. If it is Felicity then this may be the biggest loss on the show since the death of Tommy (Colin Donnell). Felicity has been a part of Team Arrow since season 1 and losing her may affect the entire team's dynamic and Oliver's future.

"Arrow" season 4 returns from its midseason break this Jan. 20.