Was Obito really going to show Sasuke his face?

[RasenUchihaChaos]

he know it wasnt madara i mean there is a statue of the guy and hashi and the valley

 

[Zol]

he know it wasnt madara i mean there is a statue of the guy and hashi and the valley

Yes, but just imagine Madara with shorter hair and a scared face - it's pretty much Obito, the differences are very small, and could easily be explained by the time passage. Kisame most likely also knew how Madara looked like back then, but he still believed Obito to be Madara...