It's not about hope, during the live letter reading it was stated that they found new ability design for SAM was becoming difficult and one of the reasons was Kaiten in its current form. To be very clear I don't like the changes, but I understand what OP is saying. The simple fact is none of us are FFXIV devs and SAM players were handed a big old "please look forward to it" without any clarity as to why a job no one asked to be changed was changed the way they did.