Some background: I didn't start BLU right away, but I got into the morbol mount scene and started tanking (since no one else would / could. :p I eventually got into normal tanking). It was rough. The stormblood update made things a lot better for all roles. I think that's where they really settled on what BLU would be. I wouldn't expect any real change anytime soon. I certainly hope they don't, as nothing is broken anymore. This is really only the 3rd(?) update, so at this point I only expect more of the same and maybe a new challenge like they talked about with the battle royale.