What other fish are you hoping to put in there in the future (meaning any other predators like HSB, WE, Pike, Musky, catfish etc) and any other medium size fish species like YP?
What type of bluegill?
Have you considered other forage fish species like Spotfin shiners or Golden shiners for diversity for when fathead minnows disappear?
I'm not advocating for more predators, a BG, LMB only pond is fine if that is your goal.
I have a 3 yo and a 2 yo Grandsons. My goal for this pond is to have the bobber go down when they come to fish. I'd like to catch a nice bass now and again but that;s not my primary objective. I don't think many of the cold water species you mention above will do well in my weather.
I think a BG / LMB Pond would be fine for me and my goals. However, as the boys age, I can them wanting to catch LMB of size so I'll need to keep that in mind.