Brainstorming for possible future "original" campaign.

I'm toying with the idea of creating a campaign setting that follows the general thematic conceit of Sword Art Online... namely, that the players are all real-world people, from any walk of life, playing a hyper-immersive video game, that become intentionally trapped within the game world.

Most of the game's source would be a generic fantasy campaign; the overview, though, would involve the entire "die in the game, die in real life" aspect of things. I might be kind and let players have three lives, akin to most video game tropes, and even give them the chance to earn 1-ups along the way... but that's not set in stone.

One thought I had would be that, while the in-game character would have the mechanical benefits of the traditional race/class/background D&D traits, their actual RP background would more reflect their real-life experiences... so a "real world" tax accountant might be good with in-game currency, or a researcher might be good at analyzing magical tomes.

I was also thinking of giving players a small feat/boon based on some connection they might have to the game itself (one per player)...

BETA TESTER - You participated in the closed beta for this game's development. While you didn't learn any plot, you do have a general sense of many of the game's regions and much of its bestiary. Once per short/long rest, you may gain advantage on a history or nature check.

PRO GAMER - Your computer is state of the art, and experiences less lag and latency than your fellow players. Add your proficiency bonus to your initiative. Once per long rest, you may use your bonus action to gain one additional action this turn.

LIVE STREAMER - You have a small but faithful following online, who watch as you livestream games. When the lockout occurred, you retained access to your stream chat, and can sometimes glean bits of information from it. Once per short/long rest, you may perform a DC15 Perception check; on a success, your next roll is at advantage.