Sig P220 In 10mm
http://www.thefirearmblog.com/blog/2014/10/01/sig-p220-10mm/
"The P220/10 will be have both SAO and DA/SA configurations, and will be available in 4.25 and 5 inch lengths. It will be based upon their all steel P220 Elite series of pistols as it is being reported."
We have a thread about this in General Discussion if you want to come check it out.