This isn't official as of yet, but according to a source close to Jon from gonnahitcharide.com, it seems that the re-releases of Boston and Don't Look Back are now on hold.
No reason has been cited, but it might have to do with the live tracks that will be included with these releases as previously reported. It's not known what source the live material is to come from, or if that has been determined. More info will be posted as it becomes available.
Source: gonnahitcharide.com