Sorry, but no, I won't work on Lyra2z family algorithms. As I know fancyIX work on it, try his sgminer fork.
Any chance on adding Xevan algo? There's sgminer for it, but it only works properly on older cards (tahiti and pitcairn). Tried using it with polaris but it gives hardware errors.
Working on it, but don't know when I will finish. Currently I made only 8 hashfuncs needed for it(but not tested yet), and there still 8 need to be done.