Expansion sure, but saying it's just OW1 with new maps and skins is a little disingenuous. Watch the gameplay feature trailer for OW2, it'll highlight the things that OW1 is incapable of doing.

Jeff Kaplan and the OW team is the only faith I have left in the teams at Blizzard, and that's saying a lot because I honestly can't stand playing OW anymore so I don't. The transparency they'd have though with the Dev Updates and how much they really try was/is commendable but the game is still a toxic mess. The fact they also had to fight Activision to make it so people with OW1 could still play the new maps for free also speaks to their care for their fans at the very least.