I have some ideas which may actually be super helpful:
Includes a set of thick contoured and thin contoured grips. That way people who like lightweight and small frames can be happy and people out there like me who like to be able to fully grip the frame when shooting don't need to chuck fat bills for an extra frame or some ridiculous ****.
Enclosed bolt. Please man. If not for peace of mind to the hundreds of potential customers, then for design's sake. I mean look how much cooler the Species timmy is than the other ones.
Keep the Macro. Seriously not that big a deal... BUT, at the least, make it sidewinder style or with an angled collar so you can keep the front end lower profile.
Booster bolt mod. The puff of air from blowback routed at the eyes and detents to keep them debris free in case of a situation where paint breaks.
FASOR design, perhaps? It can slow the bolt on the forward stroke and quicken it on the rearwards stroke. If it's a super lightweight spring, you won't need to jack the operating pressure up or risk bolt stick/FSDO. That way, you can also have a longer mechanical dwell and lower electronic dwell for an overall lower pressure/same volume gun.
In theory, that is.
I think that'd do a lot.
What would also be a cool idea is imparting a soft spring at the back and front of the ram. That way it's slightly assisted on startup and slowed at the end of every stroke in the cycle and could probably require the same or slightly lower operating pressure.
All in theory, but fun ideas to consider.
I honestly prefer magnetic retention on the ram so the ram could be smaller and be assisted/slowed consistently every time without the need for extra crap in the lower tube.
Whatever you do, hurry up man. You're disappearing from the scene