Unless they bring back Water Pulse as a TM I don't see them giving out anything other than Scald seeing how it's the only water TM (I think...) in the Gen VI TM list. That or they'll make more water TM's like Bubble beam and the like :P
Hey, Bubblebeam in Gen I was madness. Misty trashed me with that move.
But in all honesty, I prefer scald to water pulse. That move isn't just powerful but even has a chance of inflicting a burn.