There are too many fundamental design flaws in the game -- they have to rework the entire shader system to make the colours less intrusive during gameplay. It's hard to see things at a distance correctly, and the characters and environment blend too much.

They need to completely rework (or add) binaural voice comms, which will require work from the network team and the audio team (unless they half-arse it).

None of the characters are cool, and they will need to either add cool characters or rework the characters they have, which is months worth of work.

They also either need to add a proper single-player mode, because the world-building seems more story-based than what the extraction-shooter elements propose, and the extraction-shooter elements just aren't good for retention due to the shallow gameplay mechanics.

From the overhauls to testing, gameplay re-balancing, and QA, that's at least -- at least -- two years worth of work.

Even then, there's no guarantee people will even care enough to want to give it a second look, as you don't get a second chance at first impressions, and nothing during the first impressions looked impressive at all. So it's likely that even after a complete rework, the game could still end up being Concord 2.0.