The "new" Gallows will undoubtedly not be able to produce anything close to what the "old" Gallows did, mostly because what made Gallows such an enthralling band was how extremely English they were. With that out the window, I can't see Gallows becoming anything even half as exciting now.
But then again, apparently Frank wanted them to turn into a new Queens of the Stone Age, and as great as that band was, Gallows trying that stuff isn't really...right.