The news comes from the quick eyes of Stitch Kingdom and Rotoscopers writer Pablo Ruiz, who spotted the products’ Amazon pages that exist without any formal press release from Disney. At this time, no bonus features have been announced, but pre-orders can already be made (here for Emperor and here for Atlantis).
[UPDATE 3/22/13, 3:10 p.m. EST] But wait, there’s more! Today Stitch Kingdom unsurfaced another double feature that will join the June 11 release date: Lilo & Stitch (2002) and Lilo & Stitch 2: Stitch Has a Glitch (2005). And we now have cover art for all three releases!
It is unknown at this time if Lilo & Stitch‘s other sequels (2003’s Stitch! The Movie and 2006’s Leroy & Stitch, which served as the series premiere and finale, respectively, of Disney Channel’s Lilo & Stitch: The Series) will receive the Blu-ray treatment.