Furthermore, we do have at least general solutions in mind: Make the game more fun, and get a graphical overhaul done when we can (i.e., when we actually have someone on the dev team who has graphical skills).
In the meantime, my recommendation for the players still in the game is: Play the game. Have fun. Be fun to play with. Don't panic or stress out about the decline in the playerbase; leave that to the dev team.
The #1 thing every single player can do to help the game be more fun is to play it actively, treat it as a game, and do your best to include others in your fun.