Yeah absolutely. Giving that Fallen Heroes is being made in collaboration with Logic Artists it seems that Larian have concentrated most of their staff into making the "Baldurs Gate 3" and contracted out the Divinity franchise. Which makes me think maybe that Larian could be done with the Divinity series now and Fallen Heroes could be the last Divinity game.
This would piss off a lot of players who are wanting a closure to the Divine's story but as I mentioned in my previous post Fallen Heroes may be the closure and retcon out DKS. I presume Larian spent a lot of money on the licence for Baldur's gate so it would make sense for them to go in a new direction but as you say it would have to be done right. It would seem that Larian obviously want this to be the case and have put all of their efforts into it to ensure success.
I hope more information will be revealed at E3 what Larian's future plans are. Giving that they have studios in multiple countries it isn't unfeasible they could work on several games at once. This will also depend on the success of Baldur's Gate 3 or whatever it will be.
For me personally I would welcome a BG3 and a sequel to DKS as well.
