It's indefinite because they have dependencies that are maintained by other people that will break.

I mean, until the update comes out it would need to be indefinite, you can't know what needs to be changed to even give an estimate until it's out. Could be anything from a simple five minute fix to starting from near the beginning, may need dependencies updated, etc

Maybe read the article. I know it's too much to ask, but before saying stupid things, sometimes, it might be better to read the article.

“Before you grab the pitchforks to go after Bethesda or tell us that we’re idiots and you know how to stop the update – remember, that’s you know how to do it, not the collective. This is a collective project; we want everyone to have the past four years of work to come out and be the best mod possible for all of our followers. We want to incorporate this special mod that we’ve created for everyone.”

“The fact that Bethesda is keeping what is an old game updated is honestly a great thing – many members of the team are very excited to see this,” he notes. “On the technical front, being able to play Fallout London with the new potential engine improvements and the performance upgrades is fantastic. It’s going to mean that we can push the engine even harder than we’ve already pushed it. This is all going to be a boon.”

Skyrim is one of the best selling games in history. A huge chunk of those sales took place on consoles, where mod availability is limited. This whole concept of modders being the only thing making Bethesda's games successful is quite exaggerated, IMO.

I heard they wanted to film the wasteland parts of the Fallout show in Stoke, but they cancelled those plans when they got there and realised they'd have to spend millions on improvements.

Hand out some free Special Brew and they'll do the sound effects too

They could've saved time on the creation of (distopian) environments if the polluted factory towns were still there. Thanks a lot environmentalists! /s

Like this one, a lot of them are because Bethesda pushes an update like a decade after seemily halting any further work on the game and all the base mods require updates. Trying to run a specific version is probably too involved for a lot of people especially with how janky Bethesda modding is to begin with.

None is a bit harsh. There's at least one that has come out and turned into a stand-alone game, Enderal. Enderal team has previously also released Nehrim for Oblivion, which was also a huge stand-alone mod. But there was also that controversial New Vegas mod that I can't remember the name of. Skyrim also got Falskaar but I haven't played it so I don't know if that counts.

They take a huge amount of time to create so I'm not at all surprised most of them don't release, but it doesn't mean none of them release. Obviously it doesn't help that Bethesda keeps meddling with their games which end up breaking mods and adding to the development. You'd think Bethesda would've figured out how to update the game without breaking mods, but nope.

I'm still waiting for Tamriel Rebuilt for Morrowind to be completed

You should look harder then, it's just that both London and Miami have cinematic looking trailers that explode in popularity, most projects don't have these marketing savvy people.

The issue isn't anyone forgetting. The issue is Bethesda releasing a "mod breaking" update two days after the mod should have released. So if they kept the release date, anyone who tried it after that update will think the mod doesn't work. When Bethesda first announced a next gen update, everyone assumed it would have happened already

First sentence after the title:

Fallout London, the huge fan project taking the post-apocalyptic RPG to England,

I think it's an overhaul mod for fallout 4 set in London.

https://fallout4london.com/

Usually this doesn't break the mods that fix bugs. That's almost always data changes.

It is actually impossible for any company to maintain compatibility with mods when those mods use executable injection techniques like skse for skyrim. A recompile of their source without any changes could break compatibility in that scenario.