(YOUTUBE)A screenshot of 'Fallout 3: Las Vegas'

Bethesda Game Studios is set to hold its first ever press conference at the E3 this year, with Den of Geek! expecting to see an official announcement on "Fallout 4" several years after its last installment received numerous awards. However, as yet there has been no confirmed release date, although fans are eagerly anticipating the upcoming press conference for more details.

Developed by Obsidian Entertainment, "Fallout 3: Las Vegas" picked up a number of Game of the Year awards in 2008, leaving many fans itching to get their hands on the next installment.

Den of Geek! listed its expectations for the sequel, the first one being an increase in the number of non-player characters, or NPCs, that playable characters can talk to. And also kill.

"We'd like to see Bethesda take all of those [modifications] to heart and create a more interactive experience out of the box, while still maintaining that overall gloomy feel, of course," said the gaming review, comparing it to Telltale's "The Walking Dead."

"That entire game is nothing but talking to other characters, yet the game still easily maintains its overwhelming sense of dread," the review added.

Den of Geek! said "Fallout 3" felt "empty," which may have something to do with the limited memory of last-gen consoles. However, this will not be an excuse anymore for PlayStation 4 and Xbox One platforms.

'Fallout 4" is also expected to allow deeper crafting, as the last game only limited crafting to weapons.

"Fallout 3 had a decent crafting system that allowed players to MacGyver some weapons together from the crap they found on the side of the road. But there's plenty of room for improvement. Why not let us craft full sets of armor, MMO-style, or start with an entry-level weapon that we can upgrade with parts we find across the wasteland throughout the entire game," the review said.

Bethesda can also improve its gunplay, given that aiming "felt rough at times," it said.

"Fallout has a turn-based past, and the Vault-Tec Assisted Targeting System system was a nice transition, but it would be nice if we could get a Borderlands-like system for real-time combat, while maintaining the classic RPG elements Fallout is known for," the review said.

"Even Halo 5 has made some modern updates to its shooting mechanics in order to keep up with faster-paced games like Call of Duty. Fallout is obviously a very different franchise, but we'd like to see Bethesda make some quality of life improvements to the combat system just the same," it added.

Bethesda can also make the melee attack better: "Melee in the last two Fallout games felt more like something to fill the time while waiting for the VATS system to reload," the review said.

Fallout 4 also has to have seamless transitions, given the notoriety of the previous games for their long loading times, the review suggested.

The game also has to have a "karma system with real consequences, it said. "The Karma system in the Fallout series is supposed to make you think twice about every action you take in the game. Do good deeds, get good Karma. Go around stealing stuff, and people will know you're a bad guy. Seems pretty straight forward. But I never liked that you can pretty much reverse all of your negative Karma if you just start doing a bunch of good deeds," the review said.

Den of Geek! said it expects "Fallout 4" to take place in Boston. In the previous game, "The Commonwealth," which in turn is the cradle of The Institute, took place in Massachusetts. The Institute is a mysterious body that can produce synthetic humans or androids with artificial intelligence.