Seems too unclear, maybe the team hasn't figured it out either. From what I understand from the post though, the wallet will also remove the ability to run coinjoin features on other coordinators from upcoming updates?
They're in a quite difficult situation, as far as anyone can tell. The fact that they are shutting down the main coordinator means they'd probably having legal problems otherwise. The good question is if they'll continue developing Wasabi as privacy enhancing software in general. If I had to guess, they'll probably stop developing as time goes by.
Nobody in their right mind would use Wasabi after the thousand red flags, but still, the liquidity which was sitting on the main coordinator could attract those few left. Now that the authorities are hostile on everyone writing Bitcoin privacy software, they'll probably not switch to decentralized.
I might hate Wasabi. And I've done all I could to warn about their intentions and suspicious activities. But, even for my enemy, I wouldn't have wished being shut down by the state like that. Nobody deserves it, I think.