The Blu-ray has been released in a few countries, Japan, Italy & Germany. I ordered the Italian Blu via Amazon UK Marketplace (only just over £16 delivered) & it came today. The picture is...stunning! Sharp with so much detail, & the solid colours just jump out at you, I can't imagine a better transfer of this film. It must have cost a lot of time & money to do this, why it hasn't been released worldwide with a lot of fanfare heaven only knows.
Sorry, I don't know if it's multi-region, I'd think it is as it's a Paramount release, I'm sure the answer will appear online before too long.