Why are you trying to communicate here? Is it a warning/disclaimer to the researchers, letting them know that even if they go to the effort of doing the research, there's a strong chance it won't get published?
If so, then both of your sentences kinda say the same thing, yet neither make your disclaimer 100% clear.
We already know that there will always be a chance of not publishing a research.
No, I just wanted to check if I had the sentences correct and not for any specific purpose. I also concur with what you said that if I were to use that as a disclaimer it would be no where even near 50% clear.