Honestly what I think the devs need to do is figure out how to reduce / manage costs immediately, because even if they make money back from an expansion or dlc they are still spending any an alarming rate.
Next they need to find a way to maximize profits. Obviously. But what I mean is assuming they don’t have a contract with steam stating otherwise, bring the game over to epic as well. They guarantee sales and charge less than the 30% steam charges. Also EHG should have their own store, or sell the supporter bundles in game to prevent more lost revenue claimed by steam for purchasing on their platform.
The last and probably hardest part is to find out why they have bad retention, or what their customers want prioritized going forward. Did people buy supporter packs or MTX, and why or why not? Survey link on the forums, or in game, or email lists which you have from account creation. Incentivize participating with raffle style draws for supporter packs.
The way they are going it’s going to be let’s say 6-8 months before the expansion is out, and even longer possibly before the dlc class is out. Assuming charging for either means you are hoping to get by up to that point and then banking everything into that one moment to keep afloat, but unless the game turns around and finds ways to reach more players and retain the ones they have I don’t think it will be enough.