In my opinion all games that can be played solo should have an offline mode. Personally I have an excellent internet connection but I hate having to depend on servers to be able to play the game that I bought.

The thing about always online is that the servers often crap out, especially during launch or during major patches. That just annoys the hell out of me.

I'd love to get OW1 back. It was better in every single way.

I think that's just the display resolution. I expect this game will use dynamic render resolution like most games these days. The render resolution will probably not hit 4K often (if at all).