I'm not sure which of these we will get in North America but there are some nice new Umarex products coming out in the next few months. 

Some of the 4.5mm BB Pistols featured:

• Beretta 90two 4.5mm BB
• Race Gun 4.5mm BB (Blowback)
• Smith & Wesson 327 TRR8 4.5mm BB
• Smith & Wesson M&P 45

I'll will post some pictures and more info on some of these guns shortly...

Here are a couple videos featuring some of these new products from Umarex: