I wouldn't mind if they moved things more back in the direction of the standard rules. It doesn't have to be an exact match.
I don't mind things like Firebolt lighting someone standing in oil on fire. I do mind Ray of Frost targeting a person, dealing damage, creating ice on bare ground beneath them, then they immediately go prone.
I would not mind Fighters getting Shove as a bonus action. Shove being a bonus action for every single class is far too strong.
The similar thing with Jump/Disengage. It's too easy to avoid AoO.
Shove is an optional attack action, I think it should be implemented as it works in the rules. This already makes it more relevant formartial classes since they get extra attacks as they level up, while a rogue would haveto chose to forego their one and only attack to shove someone.
I love they shove is in the game, but it shouldnt be so freely acessible that it becomes a nobrainer to always shove every tuyrn you have an oportunity to do so. It just becomes silly like the jump thing. You get further if you jump so a lot of the time jumping is a free movement boost and makes the oportunity attack rules almost irrelevant.