Beamdog is on the verge of announcing their next Baldur's Gate game. They've started a countdown on the RPG's website that will conclude in just a matter of days.
The countdown on BaldursGate.com will end on July 9th. The only other content on the teaser page thus far is a blurred-out logo and an animated background of storm clouds:
This year's San Diego Comic-Con runs from July 9th to July 12th. Maybe Beamdog is planning to reveal the game during that convention?
Beamdog announced at the start of the year that they're working on a new Baldur's Gate. Like the past two games in the series, it takes place on the Sword Coast region in the Dungeons and Dragons setting of Faerun:
Adventure Y will be an addition to the Baldur’s Gate line using the Infinity engine, bridging the gap between Baldur’s Gate: Enhanced Edition and Baldur’s Gate II: Enhanced Edition. Keep an eye on the Beamblog in late spring for announcements regarding the content and release date of Adventure Y. We have an exciting release planned for this game, something bigger than we’ve ever done before.
The first screenshots showed that this new Baldur's Gate will strongly resemble the past installments. It has an isometric perspective and allows the player to command a party of adventurers. Because it's "bridging the gap" between the first two games, it presumably stars the same character as well. If so, I'll bet we can import characters from Baldur’s Gate: Enhanced Edition and Baldur’s Gate 2: Enhanced Edition.
There's definitely room for a new game between Baldur's Gate and Baldur's Gate 2. The opening cinematic for BG 2 said that players were forced to leave the city of Baldur's Gate after the end of the first game. This new interquel from Beamdog could focus on their journey south to Amn, the setting of the second game.
While this new game isn't Baldur's Gate 3, Beamdog indicated in the past they could make that sequel in the future:
We got a lot of questions about Dungeons & Dragons fifth edition and a potential Baldur’s Gate III on our reddit AMA. We’d be lying if we said we never think about doing a Baldur’s Gate III game, so we won’t say that. But we will say there’s nothing in the works yet regarding BGIII or a 5th edition game. That doesn’t mean the opportunity will never arise, though, so we’re preparing by starting a tabletop 5th edition Dungeons & Dragons game here in the office.
If they do make Baldur's Gate 3, Beamdog has said they may use Kickstarter for funding. Other isometric RPGs like Pillars of Eternity and Wasteland 2 were able to raise huge amounts of money through Kickstarter so I'm sure that BG3 would do so as well.