I don’t see M&P Shield high-cap mags in the future because the standard mags are already manufactured with thin-wall metal construction. If S&W wants to compete in micro segment with P365 and Hellcat, I agree a new design is necessary beginning with a new magazine, like Sig did. Same is true for Glock although, Glock used polymer-wrapped metal so there was an aftermarket opportunity to increase magazine capacity with a thin-wall metal design. Aftermarket S15 mags and metal mag release for G43X transform that pistol into an impossibly-small, 15-round wonder with no noticeable loss of reliability. Shield & G43 are both larger pistols than P365. IMO, they handle better and both are easier to shoot accurately. Hats off to Sig for creating the first truly high-cap micro pistol — S&W and the rest of the market are sure to follow...