would not keep your hopes up for a revamped SRT line. MH27 basically is an SRT7GT just without the selector ring. NC will still keep selling the now old tech SRT line unchanged for at least the next two years before any new SRT light is released.
Yeah, the MH27 is the new flagship, that's for sure. At least *somebody* got the idea to use two +/– side switches rather than one to cycle through a bunch o' modes. I'm still not sold on the virtues of in-light charging, since every implementation I've seen takes for-EV-ar.
But, both the MH27 and SRT7 have a serious disadvantage for tactical use: the momentary switch is at the rear, but you have to switch grips to use the forward mode controls. However, the SRT7 has a couple of major advantages: you can select any mode *before* turning it on; and for non-tactical use, you can switch the ring to Standby instead of turning it off at the tail switch, and then have all modes easily available in traditional "underhand" carry, using the ring alone.
So, as a non-LEO/military guy, sure I'd love the XP-L HI and the high-intensity RGB LEDs in my SRT7, but it suits my needs well enough that I won't be swapping it out for an MH27 anytime soon.