I voted yes because I already invest in real estate equity and debt outside of my 401k. It would be more tax efficient to do it inside.
As for digital assets that is a hard pass. There is no tax advantage if you are buying and holding (say bitcoin). The only advantage comes if you actively trade it, and that is a fool's errand.
I would be skeptical of non-public companies, too. While I would love to own the next SpaceX, xAI, ChatGPT, etc. I just do not see those trickling down to my 401k. Instead I would have access to the exhaust that the professionals do not want. Pass.
Commodities do not particularly interest me. Too much research and too many professionals to compete against.
Not sure about infrastructure finance, but maybe.
Longevity risk-sharing may be of interest. I imagine there will be some inefficiently priced pools if you are lucky to find them.