I say this because remember when Luffy and Chopper and I think Zoro got separated from Nami and the others in the Desert?
They fell down a hole in the sand and there was a huge poneglyph there but they didn't know what it was so they just left it.
I guess nobody else knew about it either because when Robin asked the King if there were any other Poneglyphs there he said no.
I was expecting one of them to end up in Arabasta when Kuma sent them all over the place but I guess not.
I assume they will have to find that Poneglyph eventually though and they have never said anything more about it in the Manga…