If you want to build new IP and there isn’t established funding you can go start a Kickstarter campaign to raise money from gamers to go build the game.
That’s the crux of it right there. Funding. Studios that have funding secured (or don’t need it) should be the ones taking those risks. But yes, it’s risky to introduce new IP, the results can be disastrous. Cliff Bleszinski knows this.
If you want to build new IP and there isn’t established funding you can go start a Kickstarter campaign to raise money from gamers to go build the game.