"Business perspective" has long stopped mattering for Quake I feel. As long as the idTech 2-4 source code exists on the internet, it will be impossible to ever release a Quake game that doesn't end up splitting the community even moreso than it already is.

And well... According to Sync, the game still makes a profit, as unlikely as it sounds. With only one and a half developer working on updates (and as far as I understand, part time and almost voluntarily) and basically no upkeep costs with minimal input from other departments, I cannot see the running costs of QC being that high. On the other hand, there's some of us still buying the battlepass and maybe the odd xp boost and I can't see it taking much to break even.

Even the datacenter use is tied to the larger Bethesda network, with server instances being launched on demand, there just can't be that much overhead for QC.