I voted not interested. Beretta had the Cougar in .45 ACP and it seemed a dismal failure. After thinking about it since my response in the General forum, I think Beretta did not understand the differences between the 9mm class cartridge and .45 class. All they seemed to have done to make a .45 capable pistol was to "super size" it. This may have been enough to house the cartridge but failed when put to use. Maybe they can engineer one correctly but I'll likely pass as there are too many proven designs out there, many considerably less than what Beretta would want for there's.
Reliability and overall design are important. More important than just having a .45 with Beretta on the slide. If all they did was enlarge the 92 then I would pass but a new model designed around getting the best possible performance out of the .45acp would be worth looking at. A new gun should also be visually pleasing but not at the expense of ergonomics. To be successful the new gun would have to offer something not readily available in the .45 market. I would like to see a gun without a magazine disconnect (the reason I won't buy a new S&W MP), without a grip safety (unnecessary), without a "read the manual" notice on the side (Ruger) and with a hammer instead of a DAO. Just a functional, reliable, full sized steel gun without a half dozen safety features that drive the price up. A thumb safety and decocker are enough for any semiauto.
I am new so take my words with grain of salt. Beretta does have a .45acp chambered in the px4-storm. I have not shot one but it feels good in my hand and I have shot the 9mm in this model. Very pleased with performance.
I think the 45 is on the way back. The 9 mm has its place but it is not with me when my life and limb are on the line. I have read the military is looking back to the 45 for the same reason they went to in in the first place. It is hard to knot a ******** down with a 9 mm. In fact at our bowling pen matches a 9 want even knot a pen off a 4 x 8 table in one shot. I have seen it take all 15 rounds to get 5 pens off the table. I like the 45 and owe my life to one back in 1970, still have the powder burns between my fingers to show. When you are fighting hand to hand in the dark a 45 feels really good.