I've tried to stay outside of this conversation for a while, but I'm going to step in now and clarify a few things:
NCSoft hasn't had anything to do with Guild Wars since september 2015 - at that point, ArenaNet took over the publishing of both GW1 and GW2 - whilst ArenaNet is still owned by NCsoft, the direct involvement of NCsoft in operations have been cut since then.
That's also the reason why the in-game shop closed, as that was being run by NCsoft.
Does that mean that NCsoft doesn't care? Well, NCsoft is more focussed on Asia nowadays and ArenaNet has proven that they can handle running an MMO and the business side - so they're a bit more out of sight.
For GW1 to get a new expansion, a few things would need to happen:
- They'd need to train a new team to use the GW1 engine and tools - since most of their current team is working on GW2 and they need those people there - they won't remove people from GW2 to improve GW1.
- The GW1-tools have been broken terribly and have been a nightmare to use for years. Joe Kimmes was responsible for adding the Balthazar weapons (it was a pet project of him) and it took him a very long time to get the tools to work at all - which is understandable, since those tools didn't get any use in the last 5 years.
So, in order to fix those, they'd need a sizeable programming team to properly fix them and probably would need to build a few new ones.
- Bill/Stephen have been trying to add new features (like the item rarity coloring, bigger bags), but it caused a lot of issues when they tried to implement it - I'm not sure if it's still coming, I sure hope so, but the GW1 engine is very old by now. Knowledge of it has lessened in the company (not only due to people leaving ArenaNet, because a ton of GW1 people still work there), but if you stop working on something you lose knowledge of the structure quickly (I'm a sysadmin/devops, I know what I'm talking about here :P).
- If all of these hordes have been tackled with, new content would be possible - but it would take a year before anything would come of it, at the least. You'd need people to get used to the tools and software and that's something which takes a while. Since the live team was about 10 people, those were able to create sizeable content drops in the game, but those were rather small and released in bits.
- Would it still be financially viable to create new content? Whilst I don't doubt that there are a lot of players and a lot of returning ones, I don't know about this. You'd need to train new support staff, hire a new team and train them, the costs to get everything working again and up to modern standards... it's going to be really expensive. GW hasn't had new content for years and the community, while still being sizeable, might not be big enough to support all of this.
Once all those hordes have been passed, a new expansion might be feasible. But those are quite big hurdles.
Should we get this big enough, I don't doubt things are possible - but we'd need A LOT of people to pull this off.
We're here to offer the place to let you promote this and if we can we'll try to help, but this isn't an easy feat to pull off - remember that the original campaigns were made by about 50 employees in about a year - to get a return on that, you'd need to sell a lot.
So, all in all: not impossible, but nearly. But there might be a small chance.
What I think is more realistic is having a small live team again that can create some small content drops, perhaps and work on small improvements that the game still needs. That alone would be amazing for me and much more likely to happen.
- Kevin