I like the suggestion and since BattleDawn is being updated I believe this should be taken into consideration. If this were to ever happen, how about posting a preview of how it looks on a on test server before running the update on the main site? This way, players will get a solid perspective in order to assert whether or not they like the update followed by their suggestions on how to improve the graphics.
In my opinion, I think the current graphics are old and should be replaced with newer ones, maybe even 3D graphics in order to keep up with the times! It's 2017, not 2006.
Finally, as for the gameplay - graphics argument, the game play is really the most exciting I have ever experienced in a way because I do not think I have ever played a game where human relations is strongly required in order to succeed, it is a game of diplomacy after all and since the graphics suggestion has been brought up, I strongly believe the team responsible of the update should treat visual and game play aspects equally.