There's still a lot we don't know about Xbox's next-gen Project Helix console, but we do know that it'll support both console and PC games, and that in theory should make it an easier console to develop for than the Series X and S.
Xbox Portfolio GM Chris Charla (who's best-known for his work with the ID@Xbox program over the years) recently spoke about this in an interview with IGN, explaining that it'll "certainly" be easier for developers to bring their titles to Project Helix in the next generation.
The biggest reason for this, it seems, is that the team wants one Xbox build to work across console, PC and cloud:
"We're working hard so developers can make one Xbox build in the future and it'll run on their Project Helix console, on PC and on streaming and cloud surfaces like smart TVs and other devices."
He then went on to share advice for developers who want to bring their games to Project Helix, suggesting that if they're developing for Xbox consoles, Xbox on PC and Xbox Play Anywhere right now, they're in pole position for bringing games natively to the next Xbox console.
"Someone looking to be ready for next-gen with Xbox should be developing for Xbox console today, developing for Xbox on PC, and supporting Xbox Play Anywhere. That'll put you in pole position for the next generation and ensure your Xbox on PC game runs natively on Project Helix. The exact specifics may differ per developer and game."
Charla pointed out that developers who are starting from a Steam build should probably focus on developing for the Xbox PC platform first, and then "use that as the basis for the Xbox console version". He again mentioned this will ensure a "native" build on Project Helix, and that more details on taking advantage of the console's specific hardware features will follow in the months to come.
Of course, Charla is only talking about native Xbox development here, and in theory Project Helix should be able to run anything that's already on Steam or the Epic Games Store, for example. In a similar interview recently, ID@Xbox director Guy Richards insisted that "putting your game out across as many different store fronts and platforms increases your opportunities for sales", hence why PC devs should still continue to branch out to Xbox.
It'll be interesting to see how things work on Project Helix and how many new developers arrive on Xbox as a result!