The first two Tenchu games should be remade. It would fit in with Activision's model of remastering these PS1 games (e.g. Crash Bandicoot, Spyro, Tony Hawk).
I also think that, if they really remade the game, they could take good advantage of ray tracing in a way no stealth game ever has. Though, it is possible that such realistic lighting could cause issues with a shadow based stealth game, it would still be cool to see







