According to the their official website, Linkin Park are confirmed to headline Skive Festival this year.
The festival takes places from May 30th to June 2nd in Skive, Denmark whereupon we don't have an exact date yet.
The last time LP performed in Denmark was in Herning in 2010 and they previously played at the Skive Festival in 2008 (showpage here). So, it looks like we got our 4th tour date for 2012 although this has still to be confirmed by the band.
01.06.2012 Adenau, Germany - Nürburgring - Rock am Ring
03.06.2012 Nürnberg, Germany - Volkspark Dutzendteich - Rock im Park
08.06.2012 Nickelsdorf, Austria - Pannonia Fields II - NovaRock
Thanks to Dan_LP for the hint!
*Update*
Linkin Park confirmed their appearance at the festival on May 30th. Thanks to everyone for the heads up. Updated tour list:
30.05.2012 Skive, Denmark - Strandtangen v/Skive Lystbådehavn - Skive Festival
01.06.2012 Adenau, Germany - Nürburgring - Rock am Ring
03.06.2012 Nürnberg, Germany - Volkspark Dutzendteich - Rock im Park
08.06.2012 Nickelsdorf, Austria - Pannonia Fields II - NovaRock