Essentially, BattleDawn (the comp version) is just simply not suited to be played on mobile. Many talks were done about creating a mobile app, but the reality of that is, it would be a money suck as it would only give convenience to currently playing BD players. It may bring back "some" players, but it wouldn't support the financial costs associated with creating it.
So instead, BD:EA was created as a new entity with the same underlying ideas behind the original BattleDawn. But not too surprising really, many times games develop and change over time. Even BattleDawn (the comp version) changed, which we refer to as OC (old client) and NC (new client). The gameplay changed drastically during this switch over as well.
As for the idea to update animations, etc. That just isn't feasible unfortunately. BattleDawn no longer has dedicated dev's. The game itself at the core is a turn based strategy. Though it would be fun to have a real time strategy aspect to it, it would overall change the play. Also, with how the game is currently set up, it just wouldn't work out well. Would essentially be starting from scratch to change the necessary coding for it, in which case, you might as well make an entirely new game (aka the story of how BD:EA became)