Yes, and hopefully most people who have the SD versions will be able to take advantage of the upgrade rebate too. I know for a fact that there are upgrade rebates for both Unbreakable and Narnia: TLTWATW, but rebate forms weren't included in either case and all my calls to the Buena Vista Customer Service line have gone straight to an answering machine and have never been returned.
Even still, I'm stoked to upgrade those first two seasons to Blu!
good thing i never bought these on SD DVD, as tempting as the picture quality was. the DVDs were very "HD-like" already (i rented some of them) but were still not as good as the 720p HD broadcasts or even the 1080p UK broadcasts.
i hope they have a S1&2 pak, since those of us who bought S3&S4 separately would already own 3&4 on BD.
Good news. After watching the past three seasons in HD my dvd version of season one looks really bad. However, I think I'll hold out for a complete series box since that seems inevitable and I think they could add some neat extras to that set.