Alpha front axle

[RuggedH2]

I'm throwing this out there because I don't know, and I'm hoping some of you might.

The new Alpha front axle (cast Iron). Will this be manufactured by AAM, the same company that brought us the aluminum 7.25?

The cast iron diff will have the larger ring and pinion correct? 4.10:1? 8 inch?

I want to keep the 4.56:1 axle ratio I have now (hell, will a 4.88:1 be available?). Will the parts be available either through GM or the aftermarket to get a 4.56:1 with the larger ring and pinion, for this housing?

Any gearheads have a favorite manufacturer? Eaton E-locker?