We don't know much, but we know that they're coming this Fall. According to DVD Town, Warner Bros. has said in a press conference that they will release two new Batman collections this fall.
Batman Begins Limited Collectors Edition Box Set will be available on DVD and Blu-Ray and Batman: The Motion Picture Anthology will be released in the Blu-Ray format as well. The anthology will be updated to include Batman Begins, which isn't available on Blu-Ray as of yet.
We have no other details to divulge at this point, but it seems that a fall release would put these collections to be in line with a DVD/Blu-Ray release of The Dark Knight, and that a Blu-Ray version of The Dark Knight might be included in the anthology as well. We'll have more on this story as it comes to us.