Battlefield: Bad Company 3 would be a dream come true for a big group of FPS fans. The newest rumor suggests that DICE is indeed working on that title and it should be available in stores next year. We already knew that a new Battlefield will be released next Autumn, so if the speculation turns out to be true, we should expect Battlefield: Bad Company 3 relatively soon.
According to AlmightyDaq, who's previously leaked a lot of Battlefield 1 informations that have been later confirmed by EA, next year's Battlefield will be set in Vietnam. If you expect an experience similar to Battlefield: Bad Company 2 - Vietnam, here'a a bad news. The Cold War or even any historical conflict is gone, as DICE plans to create an independent, fictitious story.
The maps will be smaller than Battlefield 1's, which will make the gameplay more intensive and precise, similar to what we know from the battles in the Bad Company series and Battlefield 3's Grand Bazzar. The developer is working on six multiplayer modes, including Conquest, Rush, Operations, Domination, Team Deathmatch. There will be a 5v5-centric game mode similar to Squad Obliteration.
AlmightyDaq thinks that the game will be presented at EA Play 2018. Bad Company 3 apparently doesn't include any form of microtransactions after the Battlefront 2 fiasco, but knowing Electronic Arts, the situation will change soon.