I take this rumor with a grain of salt. I highly doubt that Ruger would discontinue making .40 pistols...afterall, the .40 is the "in" cartridge with a lot of LEO's.
If this "rumor" is true, I could care less either way. I prefer .45 ACP and 9mm by far over .40! I do love my "token .40" (CZ 75), but honestly I don't think I will ever buy another .40......