Outpost Gallifrey reports The Sun newspaper's story from the 4th of March that following K9 and Sarah Jane Smith's return to Doctor Who, a further spin off featuring them will be produced. This has not been officially sanctioned, but The Sun does quote Russell T Davies as saying he has plans for a second spin off (following Torchwood).
has announced a magazine style program, Totally Doctor Who. This will feature young contestants facing off in a "Companion Academy" challenge, or taking the "Who-ru" quiz against a studio Who expert. Totally Doctor Who is expected to premiere on BBC One in mid-April, then go into a regular schedule on digital channel CBBC.
You mean that K-9 and Company isnt the only K-9 series to come! Believe me I'm there... with my Remote Control K-9 (Coming Soon)