The most recent trilogy of Hitman games all use a common engine. This announcement means you'll be able to play all of them with a single purchase, inside a single executable.
(You could do this before, but the purchase process was very confusing.)
This method of exploring a story by replaying it from varying angles is very unique and compelling storytelling device, and I hope someone will use this in the future for more than just murdering people.
Spoken like an actual assassin.
I am not sure how much that matters to B2B or less game-oriented B2C products but its interesting nonetheless because of the monetization take it seems to indicate.
I've not played this new Hitman 2016 reboot, and probably will never be playing it, as it doesn't appear IO Interactive is going to be changing their stance on DRM anytime soon. I've watched some Let's players play it on YouTube and that's reasonably satiated my desire for this new Hitman.
As a fan of Codename 47 through to Blood Money, it's a shame that fans like myself are being tossed to the wayside.
[1] https://kotaku.com/hitman-goty-edition-removed-from-gog-over...
tl;dr: there is no reason to ever purchase Hitman 1/2 at this point. You just buy Hitman 3 + legacy pack DLC to get the content of H1/H2 in H3. And if you already own H1 or H2, you get all that content in H3 without needing to pay for DLC.
