According to OverNights.tv, Nickelodeon UK and Ireland are planning to launch a brand new preschool channel called "Nick Jr +1", which will be a plus one (+1) timeshift channel that will rebroadcast what's on the main Nick Jr. Channel an hour later, similar to Nickelodeon UK's plus one (+1) timeshift channel, Nick Replay UK:
Nick Jr +1 will begin BARB reporting on 1st October, 2012.It is currently unknown whether Nick Junior's brand new channel, Nick Jr +1, will launch as a brand new channel in addition to Nick Jr. UK & Ireland and spin-off preschool channel Nick Jr. 2, or will replace Nickelodeon UK's second preschool channel, Nick Jr. 2.
source: Kantar Media