I am thinking about purchasing a Glock 19 in the next few days. However, after looking at a few post on Glock Talk and some of the other shooting websites, I see that there is a rumor that Glock is coming out with a 4th generation model of pistol. Does anyone know if this is fact or fiction? Also, does anyone know when they will come out and/or what changes will be made if in fact the rumors are true? I think that I will hold off on my purchase if they will be coming out in near future. Any comments back will be appreciated.